Integrated Device Technology Inc IDT71V42412Y, IDT71V42415Y, IDT71V42420Y Datasheet
Integrated Device Technology, Inc.
COMMERCIAL TEMPERATURE RANGE AUGUST 1996
1996 Integrated Device Technology, Inc. DSC-3622/1
10.2 1
FEATURES:
• 512K x 8 advanced high-speed CMOS Static RAM
• JEDEC Center Power / GND pinout for reduced noise
• Equal access and cycle times
— 12/15/20ns
• Single 3.3V power supply
• One Chip Select plus one Output Enable pin
• Bidirectional data inputs and outputs directly
TTL-compatible
• Low power consumption via chip deselect
• Available in 36-pin, 400 mil plastic SOJ package
DESCRIPTION:
The IDT71V424 is a 4,194,304-bit high-speed Static RAM
organized as 512K x 8. It is fabricated using IDT’s highperfomance, high-reliability CMOS technology. This state-ofthe-art technology, combined with innovative circuit design
techniques, provides a cost-effective solution for high-speed
memory needs.
The IDT71V424 has an output enable pin which operates
as fast as 6ns, with address access times as fast as 12ns. All
bidirectional inputs and outputs of the IDT71V424 are TTLcompatible and operation is from a single 3.3V supply. Fully
static asynchronous circuitry is used, requiring no clocks or
refresh for operation.
The IDT71V424 is packaged in a 36-pin, 400mil Plastic
SOJ.
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
FUNCTIONAL BLOCK DIAGRAM
3.3V CMOS STATIC RAM
4 MEG (512K x 8-BIT)
ADVANCE
INFORMATION
IDT71V424
ADDRESS
DECODER
4,194,304-BIT
MEMORY ARRAY
I/O CONTROL
•
•
•
A
0
A
18
8
8
I/O0 – I/O
7
¥
8
•
•
•
CONTROL
LOGIC
WE#
OE#
CS#
3622 drw 01
10.2 2
IDT71V424
3.3V CMOS STATIC RAM 4 MEG (512K x 8-BIT) COMMERCIAL TEMPERATURE RANGE
PIN DESCRIPTION
A0 – A18 Address Inputs Input
CS
Chip Select Input
WE
Write Enable Input
OE
Output Enable Input
I/O
0 - I/O7 Data Input/Output I/O
V
DD 3.3V Power Power
V
SS Ground Gnd
PIN CONFIGURATION
ORDERING INFORMATION
3622 tbl 01
SOJ
TOP VIEW
S
PowerXXSpeed
XXX
Package
Y
36-pin 400 mil SOJ
12
15
20
71V424
Device
Type
IDT
Speed in nanoseconds
3622 drw 03
A0
A1
A2
A3
CE
I/O 0
V
DD
V
SS
I/O 2
WE
A4
A5
A6
A7
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
NC
A18
A17
A16
OE
I/O 7
I/O 6
V
SS
V
DD
I/O 5
A14
A13
A12
A11
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
SO36
17
18
19
20
I/O 1
I/O 3 I/O 4
NC
A8
A9
A10
A15
3622 drw 02
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