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| EEPROMs MN63112S 2K-Bit EEPROM Overview The MN63112S is a 2K-bit EEPROM supporting serial I/O and operating on a single power supply with a voltage between 1.8 and 5.5 V. It provides the following pins for easy interfacing to microprocessors or microcontrollers: chip select (CS), serial clock (SK), data input (DI), and data output (DO). It includes a built-in timer for use in automatically erasing and writing data during data update operations. The ORG pin provides a choice of two memory organizations: 256 x 8 bits when ORG is connected to ground and 128 x 16 bits when ORG is connected to VCC. An internal pull-up resistor makes the latter the default configuration. Conversion of peripheral circuits to CMOS realizes great reductions in power consumption. Use of floating gate memory cells and a built-in error correction circuit ensures reliable operation for 105 write cycles. Pin Assignment CS SK DI DO 1 2 3 4 8 7 6 5 VCC N.C. ORG GND ( TOP VIEW ) SOP008-P-0225 Features Choice of memory organizations: 256 x 8 bits and 128 x 16 bits Floating gate memory cells Function blocking erroneous writes Low power consumption - Reads: max. 6.6 mW for VCC = 3.3 V - Standby: max. 66 W for VCC = 3.3 V Built-in self-timer for use in automatically erasing and writing Built-in error correction circuit that guarantees 105 write cycles 10-year data preservation period Applications Keyless entry systems, cordless telephones, storage for recognition and adjustment data for terminals, etc. 1 MN63112S Block Diagram EEPROMs 8 Memory array ORG 6 128 x 16 or 256 x 8 Address decoder Error correction circuit Data register 3 5 GND VCC DI Output buffer CS 1 Mode decode logic SK 2 Clock generator 4 2 DO EEPROMs Pin Descriptions Pin No. 1 2 3 4 5 6 7 8 Symbol CS SK DI DO GND ORG N.C. VCC Pin Name Chip select Serial clock Data input Data output Ground Memory configuration selection No connection Power supply voltage MN63112S Electrical Characteristics VCC=1.8V to 5.5V, Ta=-10C to +70C 2 to 3 V Operation 5 V Operation Parameter Power supply voltage Input leakage current at "L" level Input leakage current at "H" level Output leakage current Input voltage at "L" level Input voltage at "H" level VCC power supply current (during operation) VCC power supply current (during standby) Output voltage for "L" level (during reads) Output voltage for "H" level (during reads) Symbol VCC ILIL ILIH ILO VIL VIH ICC ISB VOL VOH Test Conditions min 1.8 ORG pin Other pins -100 -10 -10 -- - 0.1 0.8 x VCC SK=250kHz SK=1MHz CS, SK, DI="L" DO = open IOL=400 A IOL=2.1mA IOH=-10 A IOH=-100 A -- -- -- -- -- VCC - 0.3 -- max 3.3 10 10 10 10 0.2 x VCC VCC +0.3 2.0 -- 20 0.3 -- -- -- min 4.5 -150 -10 -10 -- - 0.1 3.0 -- -- -- -- -- -- VCC - 0.7 max 5.5 10 10 10 10 0.7 VCC +0.3 -- 3.0 30 -- 0.45 -- -- Unit V A A A V V mA A V V Function Descriptions Orders READ WRITE EWEN EWDS Start Bit 1 1 1 1 Operation Code Address 256 x 8 A7-A0 A7-A0 11xxxxxxx 00xxxxxxx 128 x 16 A6-A0 A6-A0 11xxxxxx 00xxxxxx D7-D0 256 x 8 Data 128 x 16 D15-D0 Contents Read Write Enable erase/write Disable erase/write 10 01 00 00 Note: x means "don't care". 3 MN63112S Package Dimensions (Unit:mm) SOP008-P-0225 EEPROMs 1.500.20 8 5 6.500.30 4.300.20 0.60 1 5.000.20 4 1.90 DETAIL F 1.100.20 1.27 SEATING PLANE 0.400.10 0.30 4 SEATING PLANE SEE DETAIL F |
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