43256 32Kx8 100ns Low-Power CMOS RAM – Datasheet

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The 43256B is a high speed, low power, and 262, 144 bits (32,768 words by 8 bits) CMOS static RAM. Battery backup is available (L, LL, A, and B versions). And A and B versions are wide voltage operations. The 43256B is packed in 28-pin plastic DIP, 28-pin plastic SOP, and 28-pin plastic TSOP.

43256 Pinout

43256 Pin Configuration

Pin NoPin NameDescription
1A14 Address Pin 14
2A12 Address Pin 12
3A7Address Pin 7
4A6 Address Pin 6
5A5 Address Pin 5
6A4 Address Pin 4
7A3 Address Pin 3
8A2 Address Pin 2
9A1Address Pin 1
10A0Address Pin 0
11I/O 1Data Inputs/Outputs 1
12I/O 2Data Inputs/Outputs 2
13I/O 3Data Inputs/Outputs 3
14GNDGround Pin
15I/O 4Data Inputs/Outputs 4
16I/O 5Data Inputs/Outputs 5
17I/O 6Data Inputs/Outputs 6
18I/O 7Data Inputs/Outputs 7
19I/O 8Data Inputs/Outputs 8
20CS’Chip Select Pin
21A10Address Pin 10
22OE’Output Enable Pin
23A11 Address Pin 11
24A9Address Pin 9
25A8Address Pin 8
26A13Address Pin 13
27WE’Write Enable Pin
28VCCPower Supply Pin

43256 Key Feature

  • 32,768 words by 8 bits organization
  • Fast access time: 70, 85, 100, 120, 150 ns (MAX.)
  • Wide voltage range (A version: VCC = 3.0 to 5.5 V, B version: VCC = 2.7 to 5.5V)
  • 2 V data retention
  • OE input for easy application

You can download this datasheet for 43256 32Kx8 100ns Low-Power CMOS RAM – Datasheet from the link given below: