 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| Standard ICs 8-bit static shift register BU4021B / BU4021BF The BU4021B and BU4021BF are 8-bit static shift registers consisting of 8 register cells, each of which has parallel input. Control of the parallel / serial control input (P / S) enables serial input / serial output with clock synchronization, as well as parallel input / serial output conversions. *Absolute maximum ratings (VSS = 0V, Ta = 25C) Parameter Power supply voltage Power dissipation Operating temperature Storage temperature Input voltage Symbol VDD Pd Topr Tstg VIN Limits - 0.3 ~ + 18 1000 (DIP), 500 (SOP) - 40 ~ + 85 - 55 ~ + 150 - 0.3 ~ VDD + 0.3 Unit V mW C C V *Logic circuit diagram P/S (9) Ds (11) CLOCK (10) P1 (7) P2 (6) P3 (5) P4 (4) P5 (13) P6 (14) P7 (15) P8 (1) *Block diagram P8 1 P8 Q6 2 Q6 Q8 3 Q8 P4 4 P4 P3 5 P3 P2 (2) Q6 (12) Q7 (3) Q8 P1 6 P2 DS CLOCK 11 Q7 12 Q7 DS P5 13 P5 P7 P6 14 P6 16 VDD 15 P7 DQ C DQ C DQ C DQ C DQ C DQ Q C DQ Q C D Q C 7 P1 P/S 10 CLOCK P/S VSS 8 9 table *Truthoperation Serial t n n+1 n+2 n+3 CLOCK DS L H L H X P/S L L L L L Q6 Q7 Q8 (t = n + 6) (t = n + 7) (t = n + 8) 0 1 0 1 Q6 ? 0 1 0 Q7 ? ? 0 1 Q8 Parallel operation CLOCK DS P / S Dm X X X: Irrelevant Qm L H H H L H : Q6, Q7, and Q8 are external 1 Standard ICs BU4021B / BU4021BF *Electrical characteristics otherwise noted, Ta = 25C, VSS = 0V) DC characteristics (unless Parameter Symbol Min. 3.5 Input high level voltage VIH 7.0 11.0 -- Input low level voltage VIL -- -- Input high level current Input low level current IIH IIL -- -- 4.95 Output high level voltage VOH 9.95 14.95 -- Output low level voltage VOL -- -- - 0.16 Output high level current IOH - 0.4 - 1.2 0.44 Output low level current IOL 1.1 3.0 -- Static current dissipation IDD -- -- Typ. -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Max. -- -- -- 1.5 3.0 4.0 0.3 - 0.3 -- -- -- 0.05 0.05 0.05 -- -- -- -- -- -- 20 40 80 A mA mA V V A A V V Unit VDD (V) 5 10 15 5 10 15 15 15 5 10 15 5 10 15 5 10 15 5 10 15 5 10 15 VI = VDD, GND VOH = 4.6V VOH = 9.5V VOH = 13.5V VOL = 0.4V VOL = 0.5V VOL = 1.5V IO = 0mA IO = 0mA VIH = 15V VIL = 0V -- -- Conditions 2 Standard ICs Switching characteristics (unless otherwise noted, VSS = 0V, Ta = 25C, CL = 50pF) Parameter Symbol Min. -- Output rise time tTLH -- -- -- Output fall time tTHL -- -- "L" to "H" propagation delay time CLOCK to Q, P / S to Q "H" to "L" propagation delay time CLOCK to Q, P / S to Q -- tPLH -- -- -- tPHL -- -- -- Setup time tsu -- -- -- Minimum clock pulse width tW (CLK) -- -- -- Maximum clock frequency f (CLK) Max. -- -- -- Maximum clock rise / fall time tr (CLK) tf (CLK) -- -- -- Minimum P / S control pulse width Input capacitance tw (P / S) -- -- CIN -- Typ. 180 90 65 100 50 40 400 170 115 400 170 115 150 50 30 150 75 40 3.0 6.0 8.0 -- -- -- 150 75 40 5 Max. -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 15 5.0 4.0 -- -- -- -- pF ns s MHz ns ns ns ns ns ns Unit BU4021B / BU4021BF VDD (V) 5 10 15 5 10 15 5 10 15 5 10 15 5 10 15 5 10 15 5 10 15 5 10 15 5 10 15 -- Conditions Measurement circuit -- Fig.1 -- Fig.1 -- Fig.1 -- Fig.1 -- Fig.1 -- Fig.1 -- Fig.1 -- Fig.1 -- -- -- -- 3 Standard ICs BU4021B / BU4021BF *Measurement circuit SW1 VDD P/S P.G. CLK P1 P2 P.G. P3 P4 P5 P6 P7 P8 DS VSS GND Q6 Q7 Q8 CL SW2 Fig.1 Switching characteristics measurement circuit 20ns 90% 50% 10% tsu tw 20ns VDD Parallel or Serial Data GND tr VDD CLOCK or P / S tPLH tf GND tPHL VOH OUTPUT tTLH tTHL VOL Fig.2 Switching characteristics waveform *Electrical characteristic curve 1200 POWER DISSIPATION: Pd (mW) 1000 DIP16 800 600 SOP16 400 200 0 0 25 50 75 100 125 150 AMBIENT TEMPERATURE: Ta (C) Fig.3 Power dissipation vs. ambient temperature 4 Standard ICs BU4021B / BU4021BF *External dimensions (Units: mm) BU4021B BU4021BF 10.0 0.2 19.4 0.3 16 9 6.5 0.3 16 6.2 0.3 4.4 0.2 9 1 0.51Min. 3.2 0.2 4.25 0.3 8 1.5 0.1 7.62 1 8 0.3 0.1 0.11 1.27 0.4 0.1 0.3Min. 0.15 2.54 0.5 0.1 0 ~ 15 DIP16 SOP16 0.15 0.1 5 |
Price & Availability of BU4021B
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |