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Philips Semiconductors Products
Product specification
Dual octal bus transceiver/registers (3-State)
MB2646
FEATURES
* Independent registers for A and B buses * Multiple VCC and GND pins minimize
switching noise
* Latch-up protection exceeds 500mA per
Jedec JC40.2 Std 17
* ESD protection exceeds 2000V per MIL
STD 883 Method 3015 and 200V per Machine Model
* Live insertion/extraction permitted * Power-up 3-State * Power-up reset * Multiplexed real-time and stored data * Outputs sink 64mA and source 32mA
QUICK REFERENCE DATA
SYMBOL tPLH tPHL CIN CI/O ICCZ
DESCRIPTION
The MB2646 high-performance BiCMOS device combines low static and dynamic power dissipation with high speed and high output drive.
The MB2646 dual transceiver/register consists of two sets of bus transceiver circuits with 3-State outputs, D-type flip-flops, and control circuitry arranged for multiplexed transmission of data directly from the input bus or from the internal registers. Data on the A or B bus will be clocked into the registers as the appropriate clock pin goes High. Output Enable (nOE) and Direction (nDIR) pins are provided to control the transceiver function. In the transceiver mode, data present at the high impedance port may be stored in either the A or B register or both.
PARAMETER Propagation delay nAx to nBx Input capacitance I/O capacitance Total supply current
CONDITIONS Tamb = 25C; GND = 0V CL = 50pF; VCC = 5V VI = 0V or VCC VO = 0V or VCC; 3-State Outputs disabled; VCC = 5.5V
TYPICAL 3.2 4 7 500
UNIT ns pF pF A
ORDERING INFORMATION
PACKAGES 52-pin plastic Quad Flat Pack TEMPERATURE RANGE -40C to +85C ORDER CODE MB2646BB DRAWING NUMBER 1418B
PIN CONFIGURATION
LOGIC SYMBOL
50 1CPBA 51 1 2 3 5 6 7
1CPAB
1SAB
1SBA
1DIR
GND
1OE
1A1
1A0
1B0
1B1
Vcc
Vcc
1A0 1A1 1A2 1A3 1A4 1A5 1A6 1A7 48 49 47 45 44 46 1CPAB 1SAB 1DIR 1CPBA 1SBA 1OE 1B0 1B1 1B2 1B3 1B4 1B5 1B6 1B7
52 51 1A2 1A3 1A4 GND 1A5 1A6 1A7 2A0 2A1 1 2 3 4 5 6 7 8 9
50 49 48 47
46 45 44 43 42
41 40 39 1B2 38 1B3 37 1B4 36 1B5 35 1B6
MB2646 52-pin PQFP
34 1B7 33 2B0 32 2B1 31 2B2 30 GND 29 2B3 28 2B4 27 2B5 19 18 20 22 23 21
42 8
41 9
39 10
38 11
37 12
36 13
35 15
34 16
2A2 10 2A3 11 2A4 12 2A5 13 14 15 16 Vcc 2A6 2A7 17 18 19 20 2CPAB GND 2SAB 2DIR 21 22 23 24 25 2OE 2B7 2CPBA 2SBA 2B6 26 Vcc
2A0 2A1 2A2 2A3 2A4 2A5 2A6 2A7 2CPAB 2SAB 2DIR 2CPBA 2SBA 2OE 2B0 2B1 2B2 2B3 2B4 2B5 2B6 2B7
33
32
31
29
28
27
25
24
August 23, 1993
1
853-1617 10589
Philips Semiconductors Products
Product specification
Dual octal bus transceiver/registers (3-State)
MB2646
DESCRIPTION (continued)
The select (nSAB, nSBA) pins determine whether data is stored or transferred through the device in real-time. The nDIR determines which bus will receive data when the nOE is
active Low. In the isolation mode (nOE = High), data from Bus A may be stored in the B register and/or data from Bus B may be stored in the A register. When an output
function is disabled, the input function is still enabled and may be used to store and transmit data. Only one of the two buses, A or B may be driven at a time.
PIN DESCRIPTION
PIN NUMBER 48, 45, 19, 22 49, 44, 18, 23 47, 20 50, 51, 1, 2, 3, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16 42, 41, 39, 38, 37, 36, 35, 34, 33, 32, 31, 29, 28, 27, 25, 24 46, 21 4, 17, 30, 43 14, 26, 40, 52 SYMBOL 1CPAB, 1CPBA, 2CPAB, 2CPBA 1SAB, 1SBA, 2SAB, 2SBA 1DIR, 2DIR 1A0 - 1A7, 2A0 - 2A7 1B0 - 1B7, 2B0 - 2B7 1OE, 2OE GND VCC NAME AND FUNCTION Clock input A to B / Clock input B to A Select input A to B / Select input B to A Direction control inputs Data inputs/outputs (A side) Data inputs/outputs (B side) Output enable inputs Ground (0V) Positive supply voltage
LOGIC SYMBOL (IEEE/IEC)
46 47 44 49 45 48 G3 3EN1 [BA] 3EN2 [AB] G6 G7 C4 C5 20 23 18 22 19 21 G3 3EN1 [BA] 3EN2 [AB] G6 G7 C4 C5
50
1 1
6 61
4D
42
8
1 1
6 61
4D
33
5D 1 51 1 2 3 5 6 7
7 7
1 2
5D 1 41 39 38 37 36 35 34 9 10 11 12 13 15 16
7 7
1 2 32 31 29 28 27 25 24
August 23, 1993
2
Philips Semiconductors Products
Product specification
Dual octal bus transceiver/registers (3-State)
MB2646
The following examples demonstrate the four fundamental bus-management functions that can be performed with the MB2646.
REAL TIME BUS TRANSFER BUS B TO BUS A
REAL TIME BUS TRANSFER BUS A TO BUS B
STORAGE FROM A, B, OR A AND B
A
B
A
B
A
B
}
nOE L nDIR nCPAB nCPBA nSAB nSBA L X X X L nOE L
nDIR nCPAB nCPBA nSAB nSBA H X X L X
TRANSFER STORED DATA TO A OR B
}
nOE L L H L X
nDIR nCPAB nCPBA nSAB nSBA H X X X X X X X X
}
A
B
}
nOE L L nDIR nCPAB nCPBA nSAB nSBA L X H|L X H H H|L X H X
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Philips Semiconductors Products
Product specification
Dual octal bus transceiver/registers (3-State)
MB2646
LOGIC DIAGRAM
nOE
nDIR nCPBA nSBA nCPAB nSAB
1of 8 Channels
1D C1 Q
nA0 1D C1 Q
nB0
nA1 nA2 nA3 nA4 nA5 nA6 nA7 DETAIL A X 7
nB1 nB2 nB3 nB4 nB5 nB6 nB7
FUNCTION TABLE
INPUTS nOE X X H H L L L L H L X * = = = = nDIR X X X X L L H H nCPAB X H or L X X X H or L nCPBA X H or L X H or L X X nSAB X X X X X X L H nSBA X X X X L H X X nAx Input Unspecified output* Input Output Input DATA I/O nBx Unspecified output* Input Input Input Output Store A, B unspecified Store B, A unspecified Store A and B data Isolation, hold storage Real time B data to A bus Stored B data to A bus Real time A data to B bus Stored A data to B bus OPERATING MODE
High voltage level Low voltage level Don't care Low-to-High clock transition The data output function may be enabled or disabled by various signals at the nOE input. Data input functions are always enabled, i.e., data at the bus pins will be stored on every Low-to-High transition of the clock. 4
August 23, 1993
Philips Semiconductors Products
Product specification
Dual octal bus transceiver/registers (3-State)
MB2646
ABSOLUTE MAXIMUM RATINGS1, 2
SYMBOL VCC IIK VI IOK VOUT IOUT Tstg PARAMETER DC supply voltage DC input diode current DC input voltage3 DC output diode current DC output voltage3 DC output current Storage temperature range VO < 0 output in Off or High state output in Low state VI < 0 CONDITIONS RATING -0.5 to +7.0 -18 -1.2 to +7.0 -50 -0.5 to +5.5 128 -65 to 150 UNIT V mA V mA V mA C
NOTES: 1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. 2. The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150C. 3. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
RECOMMENDED OPERATING CONDITIONS
SYMBOL PARAMETER MIN VCC VI VIH VIL IOH IOL t/v Tamb DC supply voltage Input voltage High-level input voltage Low-level Input voltage High-level output current Low-level output current Input transition rise or fall rate Operating free-air temperature range 0 -40 4.5 0 2.0 0.8 -32 64 10 +85 LIMITS MAX 5.5 VCC V V V V mA mA ns/V C UNIT
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Philips Semiconductors Products
Product specification
Dual octal bus transceiver/registers (3-State)
MB2646
DC ELECTRICAL CHARACTERISTICS
LIMITS SYMBOL PARAMETER TEST CONDITIONS Tamb = +25C MIN VIK Input clamp voltage VCC = 4.5V; IIK = -18mA VCC = 4.5V; IOH = -3mA; VI = VIL or VIH VOH High-level output voltage VCC = 5.0V; IOH = -3mA; VI = VIL or VIH VCC = 4.5V; IOH = -32mA; VI = VIL or VIH VOL VRST II Low-level output voltage Power-up output voltageNO TAG Input leakage current IOFF IPU/PD IIH + IOZH IIL + IOZL ICEX IO ICCH ICCL ICCZ ICC Additional supply current per input pin2 Quiescent supply current Control pins Data pins VCC = 4.5V; IOL = 64mA; VI = VIL or VIH VCC = 5.5V; IO = 1mA; VI = GND or VCC VCC = 5.5V; VI = GND or 5.5V VCC = 5.5V; VI = GND or 5.5V VCC = 0.0V; VO or VI 4.5V VCC = 2.1V; VO = 0.5V; VI = GND or VCC; VOE = Don't care VCC = 5.5V; VO = 2.7V; VI = VIL or VIH VCC = 5.5V; VO = 0.5V; VI = VIL or VIH VCC = 5.5V; VO = 5.5V; VI = GND or VCC VCC = 5.5V; VO = 2.5V VCC = 5.5V; Outputs High, VI = GND or VCC VCC = 5.5V; Outputs Low, VI = GND or VCC VCC = 5.5V; Outputs 3-State; VI = GND or VCC VCC = 5.5V; one input at 3.4V, other inputs at VCC or GND -50 2.5 3.0 2.0 TYP -0.9 2.9 3.4 2.4 0.42 0.13 0.01 5 5.0 5.0 5.0 -5.0 5.0 -80 120 37 120 0.5 0.55 0.55 1.0 100 100 50 50 -50 50 -180 250 60 250 1.5 -50 MAX -1.2 2.5 3.0 2.0 0.55 0.55 1.0 100 100 50 50 -50 50 -180 250 60 250 1.5 Tamb = -40C to +85C MIN MAX -1.2 V V V V V V A A A A A A A mA A mA A mA UNIT
Power-off leakage current Power-up/down 3-State output current4 3-State output High current 3-State output Low current Output High leakage current Output current1
NOTES: 1. Not more than one output should be tested at a time, and the duration of the test should not exceed one second. 2. This is the increase in supply current for each input at 3.4V. 3. For valid test results, data must not be loaded into the flip-flops (or latches) after applying the power. 4. This parameter is valid for any VCC between 0V and 2.1V, with a transition time of up to 10msec. From VCC = 2.1V to VCC = 5V 10% a transition time of up to 100sec is permitted.
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Philips Semiconductors Products
Product specification
Dual octal bus transceiver/registers (3-State)
MB2646
AC CHARACTERISTICS
GND = 0V, tR = tF = 2.5ns, CL = 50pF, RL = 500 LIMITS SYMBOL PARAMETER WAVEFORM MIN fMAX tPLH tPHL tPLH tPHL tPLH tPHL tPZH tPZL tPHZ tPLZ tPZH tPZL tPHZ tPLZ Maximum clock frequency Propagation delay nCPAB to nBx or nCPBA to nAx Propagation delay nAx to nBx or nBx to nAx Propagation delay nSAB to nBx or nSBA to nAx Output enable time nOE to nAx or nBx Output disable time nOE to nAx or nBx Output enable time nDIR to nAx or nBx Output disable time nDIR to nAx or nBx 1 1 2 2, 3 5 6 5 6 5 6 5 6 130 2.2 2.4 1.5 1.5 1.5 1.8 1.5 2.1 2.1 1.5 1.5 2.3 2.1 1.5 Tamb = +25oC VCC = +5.0V TYP 190 3.9 4.6 3.1 3.3 3.7 3.9 3.5 4.4 3.8 3.1 4.2 4.9 3.8 3.2 5.1 5.4 4.3 4.5 4.8 4.9 4.8 5.6 5.0 4.2 5.4 6.2 5.0 4.3 MAX Tamb = -40 to +85oC VCC = +5.0V 0.5V MIN 130 2.2 2.4 1.5 1.5 1.5 1.8 1.5 2.1 2.1 1.5 1.5 2.3 2.1 1.5 5.6 5.9 4.8 5.0 5.5 5.6 5.6 6.4 5.7 4.7 6.2 6.9 5.7 5.0 MAX MHz ns ns ns ns ns ns ns UNIT
AC SETUP REQUIREMENTS
GND = 0V, tR = tF = 2.5ns, CL = 50pF, RL = 500 LIMITS SYMBOL PARAMETER WAVEFORM Tamb = VCC = +5.0V MIN ts(H) ts(L) th(H) th(L) tw(H) tw(L) Setup time nAx to nCPAB, nBx to nCPBA Hold time nAx to nCPAB, nBx to nCPBA Pulse width, High or Low nCPAB or nCPBA 4 4 1 2.0 1.5 1.5 1.0 4.5 3.0 +25oC TYP 0.7 0.0 0.0 -0.7 2.5 2.0 Tamb = -40 to +85oC VCC = +5.0V 0.5V MIN 2.0 1.5 1.5 1.0 4.5 3.0 ns ns ns UNIT
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Philips Semiconductors Products
Product specification
Dual octal bus transceiver/registers (3-State)
MB2646
AC WAVEFORMS
VM = 1.5V, VIN = GND to 3.0V
1/fMAX
nCPBA or nCPAB
nSBA or nSAB
VM tw(H) tPHL VM tw(L) tPLH VM VM VM
VM tPLH
VM tPHL VM VM
nAx or nBx
nAx or nBx
nAx or nBx
nAx or nBx
nSBA or nSAB
nAx or nBx
VM tPHL VM tPLH VM VM
VM
VM
ts(H)
nAx or nBx
nCPBA or nCPAB
VM
Waveform 3. Propagation Delay, nSBA to nAx or nSAB to nBx
Waveform 4. Data Setup and Hold Times
nOE, nDIR
VM VM
nOE, nDIR
VM VM tPLZ
nDIR
tPZH tPHZ VOH -0.3V
nDIR
tPZL
nAx or nBx
VM
nAx or nBx
0V
Waveform 5. 3-State Output Enable Time to High Level and Output Disable Time from High Level
Waveform 6. 3-State Output Enable Time to Low Level and Output Disable Time from Low Level
NOTE: The shaded areas indicate when the input is permitted to change for predictable output performance.
August 23, 1993
8
EEEEEEEEE E EEEEEEEEE E EEEEEEEEE E EEEEEEEEE E EEEEEEEEE E
VM VM th(H) ts(L) th(L) VM VM VOL +0.3V 0V
EEE EEE EEE EEE EEE
Waveform 1. Propagation Delay, Clock Input to Output, Clock Pulse Width, and Maximum Clock Frequency
Waveform 2. Propagation Delay, nSAB to nBx or nSBA to nAx, nAx to nBx or nBx to nAx
Philips Semiconductors Products
Product specification
Dual octal bus transceiver/registers (3-State)
MB2646
VCC 7.0V VIN PULSE GENERATOR RT D.U.T CL RL VOUT RL
90% NEGATIVE PULSE VM 10% tTHL (tF) tTLH (tR) 90%
tW VM 10%
90%
AMP (V)
0V tTLH (tR) tTHL (tF) 90% VM 10% tW 0V AMP (V)
Test Circuit for 3-State Outputs
POSITIVE PULSE 10%
VM
SWITCH POSITION
TEST tPLZ tPZL All other SWITCH closed closed open
VM = 1.5V Input Pulse Definition
DEFINITIONS
RL = Load resistor; see AC CHARACTERISTICS for value. CL = Load capacitance includes jig and probe capacitance; see AC CHARACTERISTICS for value. RT = Termination resistance should be equal to ZOUT of pulse generators.
INPUT PULSE REQUIREMENTS FAMILY Amplitude MB 3.0V Rep. Rate 1MHz tW 500ns tR 2.5ns tF 2.5ns
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9
Philips Semiconductors Products
Product specification
Dual octal bus transceiver/registers (3-State)
MB2646
7 6
tPLH vs Temperature (Tamb) CL = 50pF, 1 Output Switching nCPAB to nBx or nCPBA to nAx
5 4 MAX 3
Adjustment of tPLH for Load Capacitance and # of Outputs Switching nCPAB to nBx or nCPBA to nAx
5 Offset in ns ns 4 3 MIN 2 1 -55 -35 -15 5 25 45 65 85 105 125 0 -1 -2 0 50 100 150 200 4.5VCC 5.5VCC 2 1
16 switching 8 switching 1 switching
C tPHL vs Temperature (Tamb) CL = 50pF, 1 Output Switching nCPAB to nBx or nCPBA to nAx
pF Adjustment of tPHL for Load Capacitance and # of Outputs Switching nCPAB to nBx or nCPBA to nAx
7 6 5 ns 4 3
5 4 3 Offset in ns 4.5VCC 5.5VCC 2 1 0 -1 -2
MAX
16 switching 8 switching 1 switching
MIN 2 1 -55 -35 -15 5 25 45 65 85 105 125
0
50
100
150
200
C tPLH vs Temperature (Tamb) CL = 50pF, 1 Output Switching nAx to nBx or nBx to nAx
pF Adjustment of tPLH for Load Capacitance and # of Outputs Switching nAx to nBx or nBx to nAx
5 4 MAX 3 Offset in ns 2 1 0 -1 -2 16 switching 8 switching 1 switching
6 5 4 3 2
4.5VCC 5.5VCC MIN
ns
1 0 -55 -35 -15 5 25 45 65 85 105 125
0
50
100
150
200
C
pF
August 23, 1993
10
Philips Semiconductors Products
Product specification
Dual octal bus transceiver/registers (3-State)
MB2646
6 5 4
tPHL vs Temperature (Tamb) CL = 50pF, 1 Output Switching nAx to nBx or nBx to nAx
5 4 3 Offset in ns 4.5VCC 5.5VCC 2 1 0 -1 -2
Adjustment of tPHL for Load Capacitance and # of Outputs Switching nAx to nBx or nBx to nAx
MAX
16 switching 8 switching 1 switching
ns
3 2
MIN 1 0 -55 -35 -15 5 25 45 65 85 105 125
0
50
100
150
200
C tPLH vs Temperature (Tamb) CL = 50pF, 1 Output Switching nSAB to nBx or nSBA to nAx
pF Adjustment of tPLH for Load Capacitance and # of Outputs Switching nSAB to nBx or nSBA to nAx
7 6
4 3 MAX 2
5 4 ns 3 2 1 0 -55 -35 -15 5 25 45 65 85 105 125 4.5VCC 5.5VCC Offset in ns
16 switching 8 switching 1 switching
1 0 -1 -2 0 50 100 150 200
MIN
C tPHL vs Temperature (Tamb) CL = 50pF, 1 Output Switching nSAB to nBx or nSBA to nAx
pF Adjustment of tPHL for Load Capacitance and # of Outputs Switching nSAB to nBx or nSBA to nAx
16 switching 8 switching 1 switching 2 1 0
7 6
5 4 MAX 3 Offset in ns
5 ns 4 3 2 1 -55 -35 -15 5 25 45 65 85 105 125 4.5VCC 5.5VCC
MIN
-1 -2 0 50 100 150 200
C
pF
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Philips Semiconductors Products
Product specification
Dual octal bus transceiver/registers (3-State)
MB2646
8 7 6 5 ns 4 3 2 1 0 -55 -35
tPZH vs Temperature (Tamb) CL = 50pF, 1 Output Switching nOE to nAx or nBx
Adjustment of tPZH for Load Capacitance and # of Outputs Switching nOE to nAx or nBx
5 4 MAX Offset in ns 3 2 1 0 MIN -1 -2 16 switching 8 switching 1 switching
4.5VCC 5.5VCC
-15
5
25
45
65
85
105
125
0
50
100
150
200
C tPZL vs Temperature (Tamb) CL = 50pF, 1 Output Switching nOE to nAx or nBx
pF Adjustment of tPZL for Load Capacitance and # of Outputs Switching nOE to nAx or nBx
5 4 MAX 3 Offset in ns 2 1 0 MIN -1 -2
8 7 6 5 ns 4 3 2 1 -55 -35
16 switching 8 switching 1 switching
4.5VCC 5.5VCC
-15
5
25
45
65
85
105
125
0
50
100
150
200
C tPHZ vs Temperature (Tamb) CL = 50pF, 1 Output Switching nOE to nAx or nBx
pF Adjustment of tPHZ for Load Capacitance and # of Outputs Switching nOE to nAx or nBx
8 MAX 6 Offset in ns 4.5VCC 5.5VCC MIN 4 2 0 -2 -4 16 switching 8 switching 1 switching
7 6 5 4 ns 3 2 1 0 -55 -35
10
-15
5
25
45
65
85
105
125
0
50
100
150
200
C
pF
August 23, 1993
12
Philips Semiconductors Products
Product specification
Dual octal bus transceiver/registers (3-State)
MB2646
8 7 6 5 ns 4 3 2 1 0 -55 -35
tPZH vs Temperature (Tamb) CL = 50pF, 1 Output Switching nOE to nAx or nBx
Adjustment of tPZH for Load Capacitance and # of Outputs Switching nOE to nAx or nBx
5 4 MAX Offset in ns 3 2 1 0 MIN -1 -2 16 switching 8 switching 1 switching
4.5VCC 5.5VCC
-15
5
25
45
65
85
105
125
0
50
100
150
200
C tPZL vs Temperature (Tamb) CL = 50pF, 1 Output Switching nOE to nAx or nBx
pF Adjustment of tPZL for Load Capacitance and # of Outputs Switching nOE to nAx or nBx
5 4 MAX 3 Offset in ns 2 1 0 MIN -1 -2
8 7 6 5 ns 4 3 2 1 -55 -35
16 switching 8 switching 1 switching
4.5VCC 5.5VCC
-15
5
25
45
65
85
105
125
0
50
100
150
200
C tPHZ vs Temperature (Tamb) CL = 50pF, 1 Output Switching nOE to nAx or nBx
pF Adjustment of tPHZ for Load Capacitance and # of Outputs Switching nOE to nAx or nBx
8 MAX 6 Offset in ns 4.5VCC 5.5VCC MIN 4 2 0 -2 -4 16 switching 8 switching 1 switching
7 6 5 4 ns 3 2 1 0 -55 -35
10
-15
5
25
45
65
85
105
125
0
50
100
150
200
C
pF
August 23, 1993
13
Philips Semiconductors Products
Product specification
Dual octal bus transceiver/registers (3-State)
MB2646
6 5
tPLZ vs Temperature (Tamb) CL = 50pF, 1 Output Switching nOE to nAx or nBx
6 5 MAX 4 Offset in ns 3 2 1 0 -1 -2
Adjustment of tPLZ for Load Capacitance and # of Outputs Switching nOE to nAx or nBx
16 switching 8 switching 1 switching
4 ns 3 2 MIN 1 0 -55 -35 -15 5 25 45 65 85 105 125 4.5VCC 5.5VCC
0
50
100
150
200
C tPZH vs Temperature (Tamb) CL = 50pF, 1 Output Switching nDIR to nAx or nBx
pF Adjustment of tPZH for Load Capacitance and # of Outputs Switching nDIR to nAx or nBx
8 7 6 5
5 4 MAX 3 Offset in ns 4.5VCC 2 1 0 MIN -1 -2
16 switching 8 switching 1 switching
ns
4 3 2 1 0 -55 -35 -15 5 25 45 65 85 105
5.5VCC
125
0
50
100
150
200
C tPZL vs Temperature (Tamb) CL = 50pF, 1 Output Switching nDIR to nAx or nBx
pF Adjustment of tPZL for Load Capacitance and # of Outputs Switching nDIR to nAx or nBx
8 7 6 5 ns
5 MAX 4 3 Offset in ns 4.5VCC 5.5VCC 2 1 0 -1 -2
16 switching 8 switching 1 switching
4 3 2 1 -55 -35 -15 5 25 45 65 85 105 125 MIN
0
50
100
150
200
C
pF
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14
Philips Semiconductors Products
Product specification
Dual octal bus transceiver/registers (3-State)
MB2646
7 6 5
tPHZ vs Temperature (Tamb) CL = 50pF, 1 Output Switching nDIR to nAx or nBx
10
Adjustment of tPHZ for Load Capacitance and # of Outputs Switching nDIR to nAx or nBx
16 switching 8 switching 1 switching
8 MAX 6 Offset in ns 4 2 0 -2 -4 -35 -15 5 25 45 65 85 105 125 0 50 100 150
ns
4 4.5VCC 3 2 1 -55 5.5VCC MIN
200
C tPLZ vs Temperature (Tamb) CL = 50pF, 1 Output Switching nDIR to nAx or nBx
pF Adjustment of tPLZ for Load Capacitance and # of Outputs Switching nDIR to nAx or nBx
16 switching 8 switching 1 switching
6 5
6 5 MAX 4 Offset in ns 3 2 1 0 -1 -2
4 ns 3 2 1 0 -55 -35 -15 5 25 45 65 85 105 125 4.5VCC 5.5VCC
MIN
0
50
100
150
200
C tTLH vs Temperature (Tamb) CL = 50pF, 1 Output Switching
4 9 7 3 5 ns 2 4.5VCC 5.5VCC Offset in ns 3 1 -1 0 -55 -35 -15 5 25 45 65 85 105 125 -3 0 50
pF
Adjustment of tTLH for Load Capacitance and # of Outputs Switching
16 switching 8 switching 1 switching
1
100
150
200
C
pF
August 23, 1993
15
Philips Semiconductors Products
Product specification
Dual octal bus transceiver/registers (3-State)
MB2646
4
tTHL vs Temperature (Tamb) CL = 50pF, 1 Output Switching
Adjustment of tTHL for Load Capacitance and # of Outputs Switching
5 4 20 switching 10 switching 1 switching 2 1 0 -1
3 Offset in ns
3
ns
2
4.5VCC 5.5VCC
1
0 -55 -35 -15 5 25 45 65 85 105 125
-2 0 50 100 150 200
C
pF
4.0 3.5 3.0 2.5 Volts 2.0 1.5 1.0 0.5 0 0
VOHV and VOLP vs Load Capacitance VCC = 5V, VIN = 0 to 3V
125C 25C -55C
6 5 4 3 Volts 2 1 0 125C 25C -55C -1 -2 -3
VOHP and VOLV vs Load Capacitance VCC = 5V, VIN = 0 to 3V
125C 25C -55C
125C 25C -55C
50
100
150
200
0
50
100
150
200
pF
pF
August 23, 1993
16

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