HIGH-SPEED 3.3V 1K X 8 DUAL-PORT STATIC RAM
HIGH-SPEED 3.3V 1K X 8 DUAL-PORT STATIC RAM
Features
x x
IDT71V30S/L
High-speed access – Commercial: 25/35/55ns (max.)...
Description
HIGH-SPEED 3.3V 1K X 8 DUAL-PORT STATIC RAM
Features
x x
IDT71V30S/L
High-speed access – Commercial: 25/35/55ns (max.) Low-power operation – IDT71V30S — Active: 375mW (typ.) — Standby: 5mW (typ.) – IDT71V30L — Active: 375mW (typ.) — Standby: 1mW (typ.)
x x x x x x
On-chip port arbitration logic Interrupt flags for port-to-port communication Fully asynchronous operation from either port Battery backup operation, 2V data retention (L Only) TTL-compatible, single 3.3V ±0.3V power supply Industrial temperature range (-40OC to +85OC) is available for selected speeds
Functional Block Diagram
OEL CEL R/WL OER CER R/WR
I/O0L- I/O7L I/O Control
BUSYL
(1)
I/O0R-I/O7R I/O Control
BUSYR
(1)
A9L A0L
Address Decoder
10
MEMORY ARRAY
10
Address Decoder
A9R A0R
CEL OEL R/WL
ARBITRATION and INTERRUPT LOGIC
CER OER R/WR
INTL
(2)
INTR
3741 drw 01
(2)
NOTES: 1. IDT71V30: BUSY outputs are non-tristatable push-pulls. 2. INT outputs are non-tristable push-pull output structure.
JANUARY 2001
1
©2000 Integrated Device Technology, Inc. DSC 3741/7
IDT71V30S/L High-Speed 1K x 8 Dual-Port Static RAM with Interrupts
Industrial and Commercial Temperature Ranges
Description
The IDT71V30 is a high-speed 1K x 8 Dual-Port Static RAM. The IDT71V30 is designed to be used as a stand-alone 8-bit Dual-Port SRAM. Both devices provide two independent ports with separate control, address, and I/O pins that permit independent, asynchronous access for reads or writes to any location in memory. An ...
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