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CY7C1441AV25-100BZI Datasheet(PDF) 1 Page - Cypress Semiconductor

Part # CY7C1441AV25-100BZI
Description  36-Mbit (1M x 36/2M x 18/512K x 72) Flow-Through SRAM
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Manufacturer  CYPRESS [Cypress Semiconductor]
Direct Link  http://www.cypress.com
Logo CYPRESS - Cypress Semiconductor

CY7C1441AV25-100BZI Datasheet(HTML) 1 Page - Cypress Semiconductor

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36-Mbit (1M x 36/2M x 18/512K x 72)
Flow-Through SRAM
CY7C1441AV25
CY7C1443AV25
CY7C1447AV25
Cypress Semiconductor Corporation
198 Champion Court
San Jose
, CA 95134-1709
408-943-2600
Document #: 38-05349 Rev. *F
Revised June 21, 2006
Features
• Supports 133-MHz bus operations
• 1M x 36/2M x 18/512K x 72 common I/O
• 2.5V core power supply
• 2.5V/1.8V I/O power supply
• Fast clock-to-output times
— 6.5 ns (133-MHz version)
• Provide high-performance 2-1-1-1 access rate
• User-selectable burst counter supporting Intel®
Pentium® interleaved or linear burst sequences
• Separate processor and controller address strobes
• Synchronous self-timed write
• Asynchronous output enable
• CY7C1441AV25, CY7C1443AV25 available in lead-free
100-pin TQFP package, lead-free and non-lead-free
165-ball FBGA package. CY7C1447AV25 available in
lead-free and non-lead-free 209-ball FBGA package
• JTAG boundary scan for FBGA package
• “ZZ” Sleep Mode option
Functional Description[1]
The CY7C1441AV25/CY7C1443AV25/CY7C1447AV25 are 2.5V,
1M x 36/2M x 18/512K x 72 Synchronous Flow-through
SRAMs, respectively designed to interface with high-speed
microprocessors with minimum glue logic. Maximum access
delay from clock rise is 6.5 ns (133-MHz version). A 2-bit
on-chip counter captures the first address in a burst and incre-
ments the address automatically for the rest of the burst
access. 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), 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.
The CY7C1441AV25/CY7C1443AV25/CY7C1447AV25 allows
either interleaved or linear burst sequences, selected by the
MODE input pin. A HIGH selects an interleaved burst
sequence, while a LOW selects a linear burst sequence. Burst
accesses can be initiated with the Processor Address Strobe
(ADSP) or the cache Controller Address Strobe (ADSC)
inputs. Address advancement is controlled by the Address
Advancement (ADV) input.
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).
The
CY7C1441AV25/CY7C1443AV25/CY7C1447AV25
operates from a +2.5V core power supply while all outputs may
operate with either a +2.5V or 1.8V supply. All inputs and
outputs are JEDEC-standard JESD8-5-compatible.
Selection Guide
133 MHz
100 MHz
Unit
Maximum Access Time
6.5
8.5
ns
Maximum Operating Current
270
250
mA
Maximum CMOS Standby Current
120
120
mA
Note:
1. For best-practices recommendations, please refer to the Cypress application note System Design Guidelines on www.cypress.com.


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