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70T3399S166BFG Datasheet(PDF) 5 Page - Integrated Device Technology

Part # 70T3399S166BFG
Description  HIGH-SPEED 2.5V SYNCHRONOUS DUAL-PORT STATIC RAM
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Manufacturer  IDT [Integrated Device Technology]
Direct Link  http://www.idt.com
Logo IDT - Integrated Device Technology

70T3399S166BFG Datasheet(HTML) 5 Page - Integrated Device Technology

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6.42
IDT70T3339/19/99S
High-Speed 2.5V 512/256/128K x 18 Dual-Port Static RAM
Industrial and Commercial Temperature Ranges
5
Pin Names
NOTES:
1. VDD, OPTX, and VDDQX must be set to appropriate operating levels prior to
applying inputs on the I/Os and controls for that port.
2. OPTX selects the operating voltage levels for the I/Os and controls on that port.
If OPTX is set to VDD (2.5V), then that port's I/Os and controls will operate at 3.3V
levels and VDDQX must be supplied at 3.3V. If OPTX is set to VSS (0V), then that
port's I/Os and address controls will operate at 2.5V levels and VDDQX must be
supplied at 2.5V. The OPT pins are independent of one another—both ports can
operate at 3.3V levels, both can operate at 2.5V levels, or either can operate
at 3.3V with the other at 2.5V.
3. When REPEATX is asserted, the counter will reset to the last valid address loaded
via ADSX.
4. The sleep mode pin shuts off all dynamic inputs, except JTAG inputs, when
asserted. All static inputs, i.e., PL/FTx and OPTx and the sleep mode pins
themselves (ZZx) are not affected during sleep mode. It is recommended that
boundry scan not be operated during sleep mode.
5. Address A18x is a NC for the IDT70T3319. Also, Addresses A18x and A17x are
NC's for the IDT70T3399.
6. Chip Enables and Byte Enables are double buffered when PL/FT = VIH, i.e., the
signals take two cycles to deselect.
Left Port
Right Port
Names
CE0L,
CE1L
CE0R,
CE1R
Chip Enables (Input)(6)
R/WL
R/WR
Read/Write Enable (Input)
OEL
OER
Output Enable (Input)
A0L - A18L(5)
A0R - A18R(5)
Address (Input)
I/O0L - I/O17L
I/O0R - I/O17R
Data Input/Output
CLKL
CLKR
Clock (Input)
PL/FTL
PL/FTR
Pipeline/Flow-Through (Input)
ADSL
ADSR
Address Strobe Enable (Input)
CNTENL
CNTENR
Counter Enable (Input)
REPEATL
REPEATR
Counter Repeat(3)
UBL
UBR
Upper Byte Enable (I/O9 - I/O17)(6)
LBL
LBR
Lower Byte Enable (I/O0 - I/O8)(6)
VDDQL
VDDQR
Power (I/O Bus) (3.3V or 2.5V)(1) (Input)
OPTL
OPTR
Option for selecting VDDQX(1,2) (Input)
ZZL
ZZR
Sleep Mode pin(4) (Input)
VDD
Power (2.5V)(1) (Input)
VSS
Ground (0V) (Input)
TDI
Test Data Input
TDI
Test Data Output
TCK
Test Logic Clock (10MHz) (Input)
TMS
Test Mode Select (Input)
TRST
Reset (Initialize TAP Controller) (Input)
INTL
INTR
Interrupt Flag (Output)
COLL
COLR
Collision Alert (Output)
5652 tbl 01


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