CY7C1361C
CY7C1363C
PRELIMINARY
9-Mbit (256K x 36/512K x 18) Flow-Through SRAM
Features
Functional Description[1]
• Supports 133-MHz bus operations
• 256K × 36/512K × 18 common I/O
• 3.3V –5% and +10% core power supply (VDD
The CY7C1361C/CY7C1363C is a 3.3V, 256K x 36 and 512K x
18 Synchronous Flowthrough 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
)
• 2.5V or 3.3V I/O supply (VDDQ
• Fast clock-to-output times
— 6.5 ns (133-MHz version)
— 7.5 ns (117-MHz version)
— 8.5 ns (100-MHz version)
)
addresses, all data inputs, address-pipelining Chip Enable
[2]
(
), depth-expansion Chip Enables (CE and
), Burst
CE3
CE1
2
Control inputs (
,
,
), Write Enables
(
ADV
BWx
and
,
• Provide high-performance 2-1-1-1 access rate
ADSC ADSP
), and Global Write (
BWE
). Asynchronous
GW
and
inputs
• User-selectable burst counter supporting Intel
(
)
and the ZZ pin
OE
.
include the Output Enable
Pentium interleaved or linear burst sequences
The CY7C1361C/CY7C1363C 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.
• Separate processor and controller address strobes
• Synchronous self-timed write
• Asynchronous output enable
• AvailableinLead-Free100TQFP,119BGAand165fBGA
packages Both 2 and 3 Chip Enable Options for TQFP
• IEEE 1149.1 compatible JTAG Boundary Scan for BGA
and fBGA packages
•“ZZ” Sleep Mode option
Addresses and chip enables are registered at rising edge of
clock when either Address Strobe Processor (
) or
ADSP
Address Strobe Controller (
) are active. Subsequent
ADSC
burst addresses can be internally generated as controlled by
the Advance pin ( ).
ADV
The CY7C1361C/CY7C1363C operates from a +3.3V core
power supply while all outputs may operate with either a +2.5
or +3.3V supply. All inputs and outputs are JEDEC-standard
JESD8-5-compatible.
Selection Guide
133 MHz
117 MHz
7.5
100 MHz
8.5
Unit
ns
mA
mA
Maximum Access Time
Maximum Operating Current
Maximum CMOS Standby Current
6.5
250
30
220
30
180
30
Notes:
1. For best–practices recommendations, please refer to the Cypress application note System Design Guidelines on www.cypress.com.
2. CE is for A version of TQFP ( 3 Chip Enable Option) and 165 fBGA package only. 119 BGA is offered only in 2 Chip Enable.
3
Cypress Semiconductor Corporation
•
3901 North First Street
•
San Jose, CA 95134
•
408-943-2600
Document #: 38-05541 Rev. *A
Revised October 5, 2004