HIGH-SPEED 3.3V 1K X 8 DUAL-PORT STATIC RAM - Integrated Device Technology
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 automatic power down feature, controlled by CE, permits the on chip circuitry of each port to enter a very low standby power mode.
Fabricated using IDT's CMOS high-performance technology, these devices typically operate on only 375mW of power.
Low-power (L) versions offer battery backup data retention capability, with each DualPort typically consuming 200µW from a 2V battery.
The IDT71V30 devices are packaged in 64-pin STQFPs.
Pin Configurations(1,2,3)
N/C N/C N/C INTL BUSYL R/WL CEL VCC VCC CE...
Similar Datasheet
