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70T633S10BFGI8 Datasheet(PDF) 5 Page - Integrated Device Technology |
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70T633S10BFGI8 Datasheet(HTML) 5 Page - Integrated Device Technology |
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5 / 27 page  5 IDT70T633/1S High-Speed 2.5V 512/256K x 18 Asynchronous Dual-Port Static RAM Industrial and Commercial Temperature Ranges Pin Names Left Port Right Port Names CE0L, CE1L CE0R, CE1R Chip Enables (Input) R/WL R/WR Read/Write Enable (Input) OEL OER Output Enable (Input) A0L - A18L(1) A0R - A18R(1) Address (Input) I/O0L - I/O17L I/O0R - I/O17R Data Input/Output SEML SEMR Semaphore Enable (Input) INTL INTR Interrupt Flag (Output) BUSYL BUSYR Busy Flag (Output) UBL UBR Upper Byte Select (Input) LBL LBR Lower Byte Select (Input) VDDQL VDDQR Power (I/O Bus) (3.3V or 2.5V)(2) (Input) OPTL OPTR Option for selecting VDDQX(2,3) (Input) ZZL ZZR Sleep Mode Pin(4) (Input) M/S Master or Slave Select (Input)(5) VDD Power (2.5V)(2) (Input) VSS Ground (0V) (Input) TDI Test Data Input TDO Test Data Output TCK Test Logic Clock (10MHz) (Input) TMS Test Mode Select (Input) TRST Reset (Initialize TAP Controller) (Input) 5670 tbl 01 NOTES: 1. Address A18x is a NC for IDT70T631. 2. VDD, OPTX, and VDDQX must be set to appropriate operating levels prior to applying inputs on I/OX. 3. 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 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. 4. The sleep mode pin shuts off all dynamic inputs, except JTAG inputs, when asserted. OPTx, INTx, M/S 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. BUSY is an input as a Slave (M/S=VIL) and an output when it is a Master (M/S=VIH). |
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