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PDF IDT71024S70 Data sheet ( Hoja de datos )

Número de pieza IDT71024S70
Descripción CMOS STATIC RAM 1 MEG (128K x 8-BIT)
Fabricantes Integrated Device Technology 
Logotipo Integrated Device Technology Logotipo



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Integrated Device Technology, Inc.
CMOS STATIC RAM
1 MEG (128K x 8-BIT)
IDT71024
FEATURES:
• 128K x 8 advanced high-speed CMOS static RAM
• Commercial (0° to 70°C), Industrial (-40° to 85°C) and
Military (-55° to 125°C) temperature options
• Equal access and cycle times
— Military: 15/17/20/25ns
— Industrial: 15/20ns
— Commercial: 12/15/17/20ns
• Two Chip Selects plus one Output Enable pin
• Bidirectional inputs and outputs directly TTL-compatible
• Low power consumption via chip deselect
• Available in 300 and 400 mil Plastic SOJ, and LCC pack-
ages
• Military product compliant to MIL-STD-883, Class B
DESCRIPTION:
The IDT71024 is a 1,048,576-bit high-speed static RAM
organized as 128K x 8. It is fabricated using IDT’s high-
performance, high-reliability CMOS technology. This state-
of-the-art technology, combined with innovative circuit design
techniques, provides a cost-effective solution for high-speed
memory needs.
The IDT71024 has an output enable pin which operates as
fast as 6ns, with address access times as fast as 12ns
available. All bidirectional inputs and outputs of the IDT71024
are TTL-compatible and operation is from a single 5V supply.
Fully static asynchronous circuitry is used; no clocks or
refreshes are required for operation.
The IDT71024 is packaged in 32-pin 300 mil Plastic SOJ,
32-pin 400 mil Plastic SOJ, and 32-pin 400 x 820 mil LCC
packages.
FUNCTIONAL BLOCK DIAGRAM
A0
A16
ADDRESS
DECODER
1,048,576-BIT
MEMORY ARRAY
I/O0 – I/O7
8
8
WE
OE
CONTROL
LOGIC
CS1
CS2
I/O CONTROL
8
2964 drw 01
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
MILITARY, INDUSTRIAL AND COMMERCIAL TEMPERATURE RANGES
©1996 Integrated Device Technology, Inc.
MAY 1997
DSC-2964/08
1

1 page




IDT71024S70 pdf
IDT71024
CMOS STATIC RAM 1MEG (128K x 8-BIT)
MILITARY, INDUSTRIAL AND COMMERCIAL TEMPERATURE RANGES
AC ELECTRICAL CHARACTERISTICS (VCC = 5.0V ± 10%, All Temperature Ranges)
Symbol Parameter
71024S12(1)
Min. Max.
71024S15
Min. Max.
71024S17(3) 71024S20 71024S25(2)
Min. Max. Min. Max. Min. Max.
Unit
Read Cycle
tRC Read Cycle Time
12 —
15 —
17 — 20 — 25 —
ns
tAA Address Access Time
— 12
— 15
— 17 — 20 — 25
ns
tACS
tCLZ(4)
tCHZ(4)
Chip Select Access Time
Chip Select to Output in Low-Z
Chip Deselect to Output in High-Z
— 12
3—
06
— 15
3—
07
— 17 — 20 — 25
3 — 3 —3 —
0
80
8 0 10
ns
ns
ns
tOE Output Enable to Output Valid
—6
tOLZ(4) Output Enable to Output in Low-Z
0—
tOHZ(4) Output Disable to Output in High-Z
0
5
—7
0—
05
8—
8 — 10
0 — 0 —0 —
0
60
7 0 10
ns
ns
ns
tOH
tPU(4)
tPD(4)
Output Hold from Address Change
Chip Select to Power-Up Time
Chip Deselect to Power-Down Time
4
0
12
4—
0—
— 15
4 — 4 —4 —
0 — 0 —0 —
— 17 — 20 — 25
ns
ns
ns
Write Cycle
tWC Write Cycle Time
12 —
15 —
17 — 20 — 25 —
ns
tAW Address Valid to End-of-Write
10 —
12 —
13 — 15 — 15 —
ns
tCW Chip Select to End-of-Write
10 —
12 —
13 — 15 — 15 —
ns
tAS Address Set-up Time
0—
0—
0 — 0 — 0 — ns
tWP Write Pulse Width
10 —
12 —
13 — 15 — 15 —
ns
tWR Write Recovery Time
0—
0—
0 — 0 — 0 — ns
tDW Data Valid to End-of-Write
7—
8—
9 — 9 — 10 — ns
tDH Data Hold Time
0—
0—
0 —0
tOW(4) Output Active from End-of-Write
3—
3—
3 —4
tWHZ(4) Write Enable to Output in High-Z
05
05
0 70
NOTES:
1. 0°C to +70°C temperature range only.
2. –55°C to +125°C temperature range only.
3. 0°C to +70°C and –55°C to +125°C temperature ranges only.
4. This parameter guaranteed with the AC load (Figure 2) by device characterization, but is not production tested.
—0
—4
80
— ns
— ns
9 ns
2964 tbl 010
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