Document
6116A: 11/8/89 Revision: Monday, November 8, 1993
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Features
D D D D D D D
Automatic powerĆdown when deselected CMOS for optimum speed/power High speed Ċ 20 ns Low active power Ċ 550 mW Low standby power Ċ 110 mW TTLĆcompatible inputs and outputs Capable of withstanding greater than 2001V electrostatic discharge
The CY6116A and CY6117A are highĆ performance CMOS static RAMs orgaĆ nized as 2048 words by 8 bits. Easy memoryexpansionisprovidedbyanactive LOW chip enable (CE) and active LOW output enable (OE), and threeĆstate drivĆ ers. The CY6116A and CY6117A have an automatic powerĆdown feature, reducing the power consumption by 83% when deĆ selected. Writingtothedeviceisaccomplishedwhen the chip enable (CE) and write enable (WE) inputs are both LOW. Data on the I/Opins(I/O 0 throughI/O 7)iswritteninto
Functional Description
the memory location specified on the adĆ dress pins (A 0 through A 10). ReadingthedeviceisaccomplishedbytakĆ ing chip enable (CE) and output enable (OE) LOW while write enable (WE ) reĆ mains HIGH.Undertheseconditions,the contents of the memory location specified on the address pins will appear on the I/O pins. The I/O pins remain in highĆimpedance state when chip enable (CE ) is HIGH or write enable (WE) is LOW. The CY6116A and CY6117A utilize a die coat to insure alpha immunity.
2K x 8 Static RAM
CY6116A CY6117A
Logic Block Diagram
A7 A6 A5 A4 A3 A2 A1 1 2 3 4 5 6 7 8 9 10 11 12
Pin Configurations
DIP/SOJ Top View
24 23 22 21 20 19 6116A 18 17 16 15 14 13 VCC A8 A9 WE OE A 10 CE I/O 7 I/O 6 I/O 5 I/O 4 I/O 3 A3 A2 NC NC A1 A0 I/O 0 5 6 7 8 9 10 11 6116A 4 A4 A7 V CC
LCC Top View
A8 3 2 1 28 27 26 25 24 23 22 21 20 19 1213 14 151617 18 1 I/O 2 GND I/O 3 I/O 4 I/O 5 I/O 6 WE OE A 10 NC NC CE I/O 7 A9 6116A-3 A5 A6
I/O 0
INPUT BUFFER
A0 I/O 0 I/O 1
GND ROW DECODER
A9 A8 A7 A6 A5 A4
I/O 2
SENSE AMPS
6116A-2
128 x 16 x 8 ARRAY
I/O 3
NC
NC
NC
NC
I/O 5
4 A6 A5 A4 A3 A2 5 6 7 8 9 10 11 12 13
3
2
1 32 31 30 29 28 27 26 A8 A9 NC WE OE A 10 CE I/O 7 I/O 6
CE WE COLUMN DECODER OE POWER DOWN
I/O 6
6117A
I/O 7
A1 A0 NC
A3
A2
A1
A0
6116A-1
I/O 0
14 15 16 17 1819 20 GND NC I/O 4 I/O 5 I/O 1 I/O 2 I/O 3
NC
A7
I/O 4
V CC
LCC Top View
25 24 23 22 21
I/O
A10
I/O 1
I/O 2
6116A-4
Selection Guide
Maximum Access Time (ns) Maximum Operating Current (mA) Maximum Standby Current (mA) Commercial Military Commercial Military
D
6116A-20 6117A-20
20 100
6116A-25 6117A-25
40/20
25 100 125 20 40
D
6116A-35 6117A-35
35 100 100 20 20
6116A-45 6117A-45
45 100 100 20 20
6116A-55 6117A-55
55 80 100 20 20
Cypress Semiconductor Corporation
3901 North First Street 1
San Jose
D CA 95134 D 408-943-2600 February 1988 - Revised December 1992
6116A: 11/8/89 Revision: Monday, November 8, 1993
CY6116A CY6117A
Maximum Ratings
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(Above which the useful life may be impaired. For user guidelines, not tested.) Storage Temperature . . . . . . . . . . . . . . . . . . -65 _C t.