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IDT72615L50PF Datasheet(PDF) 5 Page - Integrated Device Technology |
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IDT72615L50PF Datasheet(HTML) 5 Page - Integrated Device Technology |
5 / 20 page IDT72605/IDT72615 CMOS SyncBiFIFO 256 x 18 x 2 and 512 x 18 x 2 COMMERCIAL TEMPERATURE RANGE 5.18 5 RECOMMENDED DC OPERATING CONDITIONS Symbol Parameter Min. Typ. Max. Unit VCC Supply Voltage 4.5 5.0 5.5 V GND Supply Voltage 0 0 0 V VIH Input High Voltage 2.0 — — V VIL(1) Input Low Voltage — — 0.8 V NOTE: 2704 tbl 04 1. 1.5V undershoots are allowed for 10ns once per cycle. PIN DESCRIPTION (Continued) Symbol Name I/O Description 2704 tbl 02 FFBA B →A Full Flag O When FFBA is LOW, the B→A FIFO is full and further data writes into Port B are inhibited. When FFBA is HIGH, the FIFO is not full. FFBA is synchronized to CLKB. In bypass mode, FFBA tells Port B that a message is waiting in Port A’s output register. If FFBA is LOW, a bypass message is in the register. If FFBA is HIGH, Port A has read the message and another message can be written into Port B. BYPB Port B Bypass O This flag informs Port B that the Synchronous BiFIFO is in bypass mode. When BYPB is Flag LOW, Port A has placed the FIFO into bypass mode. If BYPB is HIGH, the Synchronous BiFIFO passes data into memory. BYPB is synchronized to CLKB. RS Reset I A LOW on this pin will perform a reset of all Synchronous BiFIFO functions. VCC Power There are three +5V power pins for the PLCC and PGA packages and two for the TQFP. GND Ground There are seven ground pins for the PLCC and PGA packages and four for the TQFP. ABSOLUTE MAXIMUM RATINGS(1) Symbol Rating Com’l. Mil. Unit VTERM Terminal Voltage –0.5 to +7.0 –0.5 to +7.0 V with Respect to Ground TA Operating 0 to +70 –55 to +125 °C Temperature TBIAS Temperature –55 to +125 –65 to +135 °C Under Bias TSTG Storage –55 to +125 –65 to +150 °C Temperature IOUT DC Output Current 50 50 mA NOTE: 2704 tbl 03 1. Stresses greater than those listed under ABSOLUTE MAXIMUM RAT- INGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. 2704 tbl 05 CAPACITANCE (TA = +25 °C, F = 1.0MHz) Symbol Parameter Conditions Max. Unit CIN(2) Input Capacitance VIN = 0V 10 pF COUT(1,2) Output Capacitance VOUT = 0V 10 pF NOTES: 1. With output deselected. 2. Characterized values, not currently tested. 2704 tbl 06 DC ELECTRICAL CHARACTERISTICS (Commercial: VCC = 5V ± 10%, TA = 0°C to +70°C) IDT72615L IDT72605L Commercial tCLK = 20, 25, 35, 50ns Symbol Parameter Min. Typ. Max. Unit IIL (1) Input Leakage Current (Any Input) –1 — 1 µA IOL (2) Output Leakage Current –10 — 10 µA VOH Output Logic "1" Voltage IOUT = –2mA 2.4 — — V VOL Output Logic "0" Voltage IOUT = 8mA — — 0.4 V ICC (3) Average VCC Power Supply Current — — 230 mA NOTES: 1. Measurements with 0.4V ≤ VIN ≤ VCC. 2. OEA, OEB ≥ VIH; 0.4 ≤ VOUT ≤ VCC. 3. Tested with outputs open. Testing frequency f=20MHz |
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