CY7C1441AV33(2013) Ver la hoja de datos (PDF) - Cypress Semiconductor
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CY7C1441AV33 Datasheet PDF : 34 Pages
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CY7C1441AV33
36-Mbit (1 M × 36) Flow-Through SRAM
36-Mbit (1 M × 36) Flow-Through SRAM
Features
■ Supports 133-MHz bus operations
■ 1 M × 36 common I/O
■ 3.3 V core power supply
■ 2.5 V or 3.3 V 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
■ CY7C1441AV33 available in JEDEC-standard Pb-free 100-pin
TQFP package, Pb-free 165-ball FBGA package.
■ IEEE 1149.1 JTAG-Compatible Boundary Scan
■ “ZZ” Sleep Mode option
Functional Description
The CY7C1441AV33 are 3.3 V, 1 M × 36 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
increments 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 CY7C1441AV33 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 CY7C1441AV33 operates from a +3.3 V core power supply
while all outputs may operate with either a +2.5 or +3.3 V supply.
All inputs and outputs are JEDEC-standard
JESD8-5-compatible.
Selection Guide
Maximum Access Time
Maximum Operating Current
Maximum CMOS Standby Current
Description
133 MHz Unit
6.5
ns
310
mA
120
mA
Cypress Semiconductor Corporation • 198 Champion Court
Document Number: 38-05357 Rev. *K
• San Jose, CA 95134-1709 • 408-943-2600
Revised May 24, 2013
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