Document
HIGH-SPEED 4K x 9 DUAL-PORT STATIC RAM
Integrated Device Technology, Inc.
IDT7014S
FEATURES:
• True Dual-Ported memory cells which allow simultaneous access of the same memory location • High-speed access — Military: 20/25/35ns (max.) — Commercial: 12/15/20/25ns (max.) • Low-power operation — IDT7014S Active: 900mW (typ.) • Fully asynchronous operation from either port • TTL-compatible; single 5V (± 10%) power supply • Available in 52-pin PLCC and a 64-pin TQFP • Industrial temperature range (–40°C to +85°C) is available, tested to military electrical specifications
DESCRIPTION:
The IDT7014 is an extremely high-speed 4K x 9 Dual-Port Static RAM designed to be used in systems where on-chip hardware port arbitration is not needed. This part lends itself to high-speed applications which do not need on-chip arbitration to manage simultaneous access. The IDT7014 provides 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. See functional description. The IDT7014 utilitizes a 9-bit wide data path to allow for parity at the user's option. This feature is especially useful in data communication applications where it is necessary to use a parity bit for transmission/reception error checking. Fabricated using IDT’s high-performance technology, the IDT7014 Dual-Ports typically operate on only 900mW of power at maximum access times as fast as 12ns. The IDT7014 is packaged in a 52-pin PLCC and a 64-pin thin plastic quad flatpack (TQFP).
FUNCTIONAL BLOCK DIAGRAM
R/
WL
R/
WR
OEL
I/O0L- I/O8L COLUMN CONTROL COLUMN CONTROL
OER
I/O0R- I/O8R
A0L- A11L
LEFT SIDE ADDRESS DECODE LOGIC
MEMORY ARRAY
RIGHT SIDE ADDRESS DECODE LOGIC
A0R- A11R
2528 drw 01
The IDT logo is a registereed trademark of Integrated Device Technology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
©1996 Integrated Device Technology, Inc. For latest information contact IDT’s web site at www.idt.com or fax-on-demand at 408-492-8391.
OCTOBER 1996
DSC-2528/6
6.11
1
IDT7014S HIGH-SPEED 4K x 9 DUAL-PORT STATIC RAM
MILITARY AND COMMERCIAL TEMPERATURE RANGES
PIN CONFIGURATIONS(1,2)
INDEX
ABSOLUTE MAXIMUM RATINGS (1)
Symbol Rating Commercial –0.5 to +7.0 Military –0.5 to +7.0 Unit V VTERM(2) Terminal Voltage with Respect to GND
A7R A8R A9R A10R A11R
A6L A7L A8L A9L A10L A11L
OEL
VCC R/ L GND I/O8L I/O7L I/O6L
W
7 6 5 4 3 2 52 51 50 49 48 47 1 8 46 45 9 10 44 11 43 12 42 IDT 7014 13 41 J52-1 PLCC 14 40 15 39 Top View (3) 16 38 17 37 18 36 19 35 20 34 21 22 23 24 25 26 27 28 29 30 31 32 33
A5L A4L A3L A2L A1L A0L A0R A1R A2R A3R A4R A5R A6R
VTERM(3) TA TBIAS TSTG IOUT
Terminal Voltage Operating Temperature Temperature Under Bias Storage Temperature DC Output Current
–0.5 to Vcc 0 to +70 –55 to +125 –55 to +125 50
–0.5 to Vcc
V
–55 to +125 °C –65 to +135 °C
OER
GND R/ R GND I/O8R I/O7R I/O6R I/O5R
W
–65 to +150 °C 50 mA
2528 drw 02
NOTES: 2528 tbl 01 1. Stresses g.