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CY7C1387C-200AI Datasheet(PDF) 1 Page - Cypress Semiconductor

Part # CY7C1387C-200AI
Description  18-Mb (512K x 36/1M x 18) Pipelined DCD Sync SRAM
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Manufacturer  CYPRESS [Cypress Semiconductor]
Direct Link  http://www.cypress.com
Logo CYPRESS - Cypress Semiconductor

CY7C1387C-200AI Datasheet(HTML) 1 Page - Cypress Semiconductor

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18-Mb (512K x 36/1M x 18) Pipelined DCD
Sync SRAM
CY7C1386C
CY7C1387C
Cypress Semiconductor Corporation
3901 North First Street
San Jose
, CA 95134
408-943-2600
Document #: 38-05239 Rev. *B
Revised February 26, 2004
Features
• Supports bus operation up to 250 MHz
• Available speed grades are 250, 225, 200 and 167 MHz
• Registered inputs and outputs for pipelined operation
• Optimal for performance (Double-Cycle deselect)
• Depth expansion without wait state
• 3.3V –5% and +10% core power supply (VDD)
• 2.5V / 3.3V I/O operation
• Fast clock-to-output times
— 2.6 ns (for 250-MHz device)
— 2.8 ns (for 225-MHz device)
— 3.0 ns (for 200-MHz device)
— 3.4 ns (for 167-MHz device)
• Provide high-performance 3-1-1-1 access rate
• User-selectable burst counter supporting Intel
Pentium interleaved or linear burst sequences
• Separate processor and controller address strobes
• Synchronous self-timed writes
• Asynchronous output enable
• Offered in JEDEC-standard 100-pin TQFP, 119-ball BGA
and 165-Ball fBGA packages
• IEEE 1149.1 JTAG-Compatible Boundary Scan
• “ZZ” Sleep Mode Option
Functional Description[1]
The CY7C1386C/CY7C1387C SRAM integrates 524,288 x 36
and 1048,576 x 18 SRAM cells with advanced synchronous
peripheral circuitry and a two-bit counter for internal burst
operation. All synchronous inputs are gated by registers
controlled by a positive-edge-triggered Clock Input (CLK). The
synchronous inputs include all addresses, all data inputs,
address-pipelining Chip Enable (CE1), depth-expansion Chip
Enables (CE2 and CE3[2]), Burst Control inputs (ADSC, ADSP,
and ADV), Write Enables (BWX, and BWE), and Global Write
(GW). Asynchronous inputs include the Output Enable (OE)
and the ZZ pin.
Addresses and chip enables are registered at rising edge of
clock when either Address Strobe Processor (ADSP) or
Address Strobe Controller (ADSC) are active. Subsequent
burst addresses can be internally generated as controlled by
the Advance pin (ADV).
Address, data inputs, and write controls are registered on-chip
to initiate a self-timed Write cycle.This part supports Byte Write
operations (see Pin Descriptions and Truth Table for further
details). Write cycles can be one to four bytes wide as
controlled by the byte write control inputs. GW active LOW
causes all bytes to be written. This device incorporates an
additional pipelined enable register which delays turning off
the output buffers an additional cycle when a deselect is
executed.This feature allows depth expansion without penal-
izing system performance.
The CY7C1386C/CY7C1387C operates from a +3.3V core
power supply while all outputs operate with a +3.3V or a +2.5V
supply. All inputs and outputs are JEDEC-standard
JESD8-5-compatible.
Selection Guide
250 MHz
225 MHz
200 MHz
167 MHz
Unit
Maximum Access Time
2.6
2.8
3.0
3.4
ns
Maximum Operating Current
350
325
300
275
mA
Maximum CMOS Standby Current
70
70
70
70
mA
Shaded areas contain advance information.
Please contact your local Cypress sales representative for availability of these parts.
Notes:
1. For best–practices recommendations, please refer to the Cypress application note System Design Guidelines on www.cypress.com.
2. CE3 and CE2 are for TQFP and 165 fBGA package only. 119 BGA is offered only in Single Chip Enable.


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