KM62256C
KM62256C is 32K x 8 bit Low Power CMOS Static RAM manufactured by Samsung Semiconductor.
FEATURES
- Process Technology : 0.7 µ m CMOS
- Organization : 32Kx8
- Power Supply Voltage : Single 5V ±10%
- Low Data Retention Voltage : 2V(Min)
- Three state output and TTL patible
- Package Type : 28-DIP-600, 28-SOP-450, 28-TSOP1 -0813.4F/R
CMOS SRAM
GENERAL DESCRIPTION
The KM62256C family is fabricated by SAMSUNG ′s advanced CMOS process technology. The family supports various operating temperature ranges and has various package types for user flexibility of system design. The family also support low data retention voltage for battery back-up operation with low data retention current.
PRODUCT FAMILY
Power Dissipation Product Family KM62256CL KM62256CL-L KM62256CLE KM62256CLE-L KM62256CLI KM62256CLI-L Operating Temperature. Speed(ns) PKG Type Standby (ISB1 , Max) 100µ A 20µA 100µ A 50µA 100µ A 50µA 70m A Operating (Icc2) mercial (0~70°C) Extended (-25~85°C) Industrial (-40~85°C)
55/70ns
28-DIP, 28-SOP 28-TSOP I R/F 28-SOP 28-TSOP I R/F 28-SOP 28-TSOP I R/F
70ns
70ns
PIN DESCRIPTION
OE A11 A9 A8 A13 WE VCC A14 A12 A7 A6 A5 A4 A3 A3 A4 A5 A6 A7 A12 A14 VCC WE A13 A8 A9 A11 OE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 14 13 12 11 10 9 8 7 6 5 4 3 2 1 28 27 26 25 24 23 22 21 20 19 18 17 16 15 15 16 17 18 19 20 21 22 23 24 25 26 27 28 A10 CS I/O8 I/O7 I/O6 I/O5 I/O4 VSS I/O3 I/O2 I/O1 A0 A1 A2 A2 A1 A0 I/O1 I/O2 I/O3 VSS I/O4 I/O5 I/O6 I/O7 I/O8 CS A10
FUNCTIONAL BLOCK DIAGRAM
Clk gen. Precharge circuit.
A14 A12 A7 A6 A5 A4 A3 A2 A1 A0 I/O1 I/O2 I/O3 VSS
1 2 3 4 5 6 7 8 9 10 11 12 13 14
28 27 26 25 24 23
VCC WE A13 A8 A9 A11 OE A10 CS I/O8 I/O7 I/O6 I/O5 I/O4
28-TSOP Type I
- Forward
A3 A4 A5 A6 A7 A8 A12 A13 A14
Row select
28-DIP 22 28-SOP 21
20 19 18 17 16 15
Memory array 512 rows 64×8 columns
28-TSOP Type I
- Reverse
I/O1 I/O8
Data cont
I/O Circuit Column select
Data cont
Name Name
A0~A14 WE CS...