GS8640V32T-250I GSI [GSI Technology], GS8640V32T-250I Datasheet
GS8640V32T-250I
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GS8640V32T-250I Summary of contents
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... Pb-Free 100-lead TQFP package available Functional Description Applications The GS8640V18/32/36T is a 75,497,472-bit high performance synchronous SRAM with a 2-bit burst address counter. Although of a type originally developed for Level 2 Cache applications supporting high performance CPUs, the device now finds application in synchronous SRAM applications, ranging from DSP main store to networking chip set support ...
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DDQ ...
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DDQ ...
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DQP DDQ ...
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TQFP Pin Description Symbol Type I ...
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Register – LBO ADV CK ADSC ADSP Power Down ZZ Control Note: Only x36 version shown ...
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Mode Pin Functions Mode Name Burst Order Control Output Register Control Power Down Control Note: There is a pull-up device on the FT pin and a pull-down device on the ZZ pin, so those input pins can be unconnected and ...
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Byte Write Truth Table Function GW Read H Read H Write byte a H Write byte b H Write byte c H Write byte d H Write all bytes H Write all bytes L Notes: 1. All byte outputs are ...
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Synchronous Truth Table Address Operation Used Deselect Cycle, Power Down Deselect Cycle, Power Down Deselect Cycle, Power Down Read Cycle, Begin Burst External Read Cycle, Begin Burst External Write Cycle, Begin Burst External Read Cycle, Continue Burst Read Cycle, Continue ...
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Notes: 1. The diagram shows only supported (tested) synchronous state transitions. The diagram presumes G is tied low. 2. The upper portion of the diagram assumes active use of only the Enable (E1) and Write (B that ADSP is tied ...
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Notes: 1. The diagram shows supported (tested) synchronous state transitions plus supported transitions that depend upon the use Use of “Dummy Reads” (Read Cycles with G High) may be used to make the transition from Read cycles ...
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Absolute Maximum Ratings (All voltages reference Symbol DDQ V I/O V Voltage on Other Input Pins IN I Input Current on Any Pin IN I Output Current on Any I/O Pin OUT P ...
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Logic Levels Parameter V Input High Voltage DD V Input Low Voltage DD V I/O Input High Voltage DDQ V I/O Input Low Voltage DDQ Notes: 1. The part numbers of Industrial Temperature Range versions end the character “I”. Unless ...
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AC Test Conditions Parameter Input high level Input low level Input slew rate Input reference level Output reference level Output load Notes: 1. Include scope and jig capacitance. 2. Test conditions as specified with output loading as shown in Fig. ...
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Operating Currents Parameter Test Conditions (x32/ x36) Device Selected; All other inputs Operating ≥V or ≤ V Current IH IL Output open (x18) Standby ZZ ≥ V – 0.2 V — DD Current Device Deselected; Deselect All other inputs — ...
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AC Electrical Characteristics Parameter Clock Cycle Time Clock to Output Valid Clock to Output Invalid Pipeline Clock to Output in Low-Z Setup time Hold time Clock Cycle Time Clock to Output Valid Clock to Output Invalid Flow Through Clock to ...
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Begin Read A Cont Single Read Single Read CK ADSP tS tH ADSC tS ADV tS tH A0– Ba– tOE DQa–DQd Rev: 1.00 9/2004 Specifications cited ...
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Begin Read A Cont tKH tKH CK ADSP tS tH ADSC tS tH ADV tS tH A0– Ba– and E3 only sampled with ADSC tOE ...
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... During normal operation, ZZ must be pulled low, either by the user or by its internal pull down resistor. When ZZ is pulled high, the SRAM will enter a Power Sleep mode after 2 cycles. At this time, internal state of the SRAM is preserved. When ZZ returns to low, the SRAM operates normally after 2 cycles of wake up time. ...
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TQFP Package Drawing (Package T) Symbol Description Min. Nom. Max A1 Standoff 0.05 A2 Body Thickness 1.35 b Lead Width 0.20 c Lead Thickness 0.09 D Terminal Dimension 21.9 D1 Package Body 19.9 E Terminal Dimension 15.9 E1 Package Body ...
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... GS8640V32T-167 GS8640V36T-300 GS8640V36T-250 GS8640V36T-200 GS8640V36T-167 GS8640V18T-300I GS8640V18T-250I GS8640V18T-200I GS8640V18T-167I GS8640V32T-300I GS8640V32T-250I GS8640V32T-200I GS8640V32T-167I GS8640V36T-300I GS8640V36T-250I GS8640V36T-200I GS8640V36T-167I GS8640V18GT-250 GS8640V18GT-200 GS8640V18GT-167 GS8640V32GT-300 ...
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Ordering Information for GSI Synchronous Burst RAMs (Continued) 1 Org Part Number GS8640V32GT-200 GS8640V32GT-167 GS8640V36GT-250 GS8640V36GT-200 GS8640V36GT-167 GS8640V18GT-300I GS8640V18GT-250I ...
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... Sync SRAM Datasheet Revision History DS/DateRev. Code: Old; Types of Changes New Format or Content 8640Vxx_r1 Rev: 1.00 9/2004 Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. GS8640V18/32/36T-300/250/200/167 Page;Revisions;Reason • Creation of new datasheet 23/23 Product Preview © 2004, GSI Technology ...