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IDT70T25

Integrated Device Technology
Part Number IDT70T25
Manufacturer Integrated Device Technology
Description HIGH-SPEED 2.5V 8/4K x 18 DUAL-PORT 8/4K x 16 DUAL-PORT STATIC RAM
Published Apr 4, 2005
Detailed Description HIGH-SPEED 2.5V 8/4K x 18 DUAL-PORT 8/4K x 16 DUAL-PORT STATIC RAM Features ◆ ◆ PRELIMINARY IDT70T35/34L IDT70T25/24L ...
Datasheet PDF File IDT70T25 PDF File

IDT70T25
IDT70T25

Overview
HIGH-SPEED 2.
5V 8/4K x 18 DUAL-PORT 8/4K x 16 DUAL-PORT STATIC RAM Features ◆ ◆ PRELIMINARY IDT70T35/34L IDT70T25/24L ◆ ◆ ◆ True Dual-Ported memory cells which allow simultaneous reads of the same memory location High-speed access IDT70T35/34L (IDT70T25/24L) – Commercial: 20/25ns (max.
) – Industrial: 25ns (max.
) Low-power operation – IDT70T35/34L (IDT70T25/24L) Active: 200mW (typ.
) Standby: 600µW (typ.
) Separate upper-byte and lower-byte control for multiplexed bus compatibility IDT70T35/34L (IDT70T25/24L) easily expands data bus ◆ ◆ ◆ ◆ ◆ ◆ ◆ ◆ width to 36 bits (32 bits) or more using the Master/Slave select when cascading more than one device M/S = VIH for BUSY output flag on Master M/S = VIL for BUSY input on Slave BUSY and Interrupt Flag On-chip port arbitration logic Full on-chip hardware support of semaphore signaling between ports Fully asynchronous operation from either port LVTTL-compatible, single 2.
5V (±100mV) power supply Available in a 100-pin Thin Quad Flatpack (TQFP) package and 100-pin fine pitch Ball Grid Array (fpBGA) Industrial temperature range (-40°C to +85°C) is available for selected speeds Functional Block Diagram R/WL UBL R/WR UBR LBL CEL OEL LBR CER OER , I/O9L-I/O17L(5) I/O0L-I/O8L(4) BUSYL (2,3) I/O9R-I/O17R(5) I/O Control I/O Control I/O0R-I/O8R(4) BUSYR(2,3) A12R(1) A0R A12L(1) A0L Address Decoder 13 MEMORY ARRAY 13 Address Decoder CEL OEL R/WL SEML INTL(3) NOTES: 1.
A12 is a NC for IDT70T34 and IDT70T24.
2.
(MASTER): BUSY is output; (SLAVE): BUSY is input.
3.
BUSY outputs and INT outputs are non-tri-stated push-pull.
4.
I/O0x - I/O7x for IDT70T25/24.
5.
I/O8x - I/O15x for IDT70T25/24.
ARBITRATION INTERRUPT SEMAPHORE LOGIC CER OER R/WR SEMR INTR(3) 5639 drw 01 M/S DECEMBER 2002 1 DSC-5639/2 ©2002 Integrated Device Technology, Inc.
IDT70T35/34L(IDT70T25/24L) High-Speed 2.
5V 8/4K x 18 (8/4K x 16) Dual-Port Static RAM PRELIMINARY Industrial and Commercial Temperature Ranges Description The IDT70T35/34L (IDT70T2...


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