CY7C1231H-133AXC Cypress Semiconductor Corp, CY7C1231H-133AXC Datasheet

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CY7C1231H-133AXC

Manufacturer Part Number
CY7C1231H-133AXC
Description
IC SRAM 2MBIT 133MHZ 100LQFP
Manufacturer
Cypress Semiconductor Corp
Datasheet

Specifications of CY7C1231H-133AXC

Format - Memory
RAM
Memory Type
SRAM - Synchronous
Memory Size
2M (128K x 18)
Speed
133MHz
Interface
Parallel
Voltage - Supply
3.135 V ~ 3.6 V
Operating Temperature
0°C ~ 70°C
Package / Case
100-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
CY7C1231H-133AXC
Manufacturer:
Cypress Semiconductor Corp
Quantity:
10 000
Cypress Semiconductor Corporation
Document #: 001-00207 Rev. *B
Features
Note:
Logic Block Diagram
CEN
1. For best-practices recommendations, please refer to the Cypress application note System Design Guidelines on www.cypress.com.
CLK
• Can support up to 133-MHz bus operations with zero
• Pin compatible and functionally equivalent to ZBT™
• Internally self-timed output buffer control to eliminate
• Registered inputs for flow-through operation
• Byte Write capability
• 128K x 18 common I/O architecture
• 3.3V core power supply
• 3.3V/2.5V I/O operation
• Fast clock-to-output times
• Clock Enable (CEN) pin to suspend operation
• Synchronous self-timed write
• Asynchronous Output Enable
• Offered in JEDEC-standard lead-free 100-pin TQFP
• Burst Capability—linear or interleaved burst order
• Low standby power
wait states
— Data is transferred on every clock
devices
the need to use OE
— 6.5 ns (133-MHz device)
package
A0, A1, A
ADV/LD
MODE
BW
BW
C
ZZ
WE
CE
CE
CE
OE
A
B
1
2
3
CE
REGISTER
ADDRESS
READ LOGIC
CONTROL
WRITE ADDRESS
SLEEP
AND DATA COHERENCY
REGISTER
WRITE REGISTRY
CONTROL LOGIC
ADV/LD
2-Mbit (128K x 18) Flow-Through SRAM
198 Champion Court
C
A1
A0
D1
D0
BURST
LOGIC
Q1
Q0
Functional Description
The CY7C1231H is a 3.3V/2.5V, 128K x 18 Synchronous
Flow-through Burst SRAM designed specifically to support
unlimited true back-to-back Read/Write operations without the
insertion of wait states. The CY7C1231H is equipped with the
advanced No Bus Latency™ (NoBL™) logic required to
enable consecutive Read/Write operations with data being
transferred on every clock cycle. This feature dramatically
improves the throughput of data through the SRAM, especially
in systems that require frequent Write-Read transitions.
All synchronous inputs pass through input registers controlled
by the rising edge of the clock. The clock input is qualified by
the Clock Enable (CEN) signal, which when deasserted
suspends operation and extends the previous clock cycle.
Maximum access delay from the clock rise is 6.5 ns (133-MHz
device).
Write operations are controlled by the two Byte Write Select
(BW
conducted with on-chip synchronous self-timed write circuitry.
Three synchronous Chip Enables (CE
asynchronous Output Enable (OE) provide for easy bank
selection and output tri-state control. In order to avoid bus
contention, the output drivers are synchronously tri-stated
during the data portion of a write sequence.
A1'
A0'
[A:B]
DRIVERS
WRITE
) and a Write Enable (WE) input. All writes are
San Jose
with NoBL™ Architecture
MEMORY
ARRAY
,
CA 95134-1709
REGISTER
INPUT
[1]
M
N
A
S
E
S
E
P
S
E
Revised April 26, 2006
D
A
A
N
G
T
S
T
E
E
R
I
1
, CE
CY7C1231H
2
O
U
U
U
T
P
T
B
E
R
F
F
S
, CE
E
408-943-2600
3
) and an
DQs
DQP
DQP
A
B

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CY7C1231H-133AXC Summary of contents

Page 1

... The CY7C1231H is a 3.3V/2.5V, 128K x 18 Synchronous Flow-through Burst SRAM designed specifically to support unlimited true back-to-back Read/Write operations without the insertion of wait states. The CY7C1231H is equipped with the advanced No Bus Latency™ (NoBL™) logic required to enable consecutive Read/Write operations with data being transferred on every clock cycle ...

Page 2

... Selection Guide Maximum Access Time Maximum Operating Current Maximum CMOS Standby Current Pin Configuration DDQ DDQ BYTE DDQ DQP DDQ Document #: 001-00207 Rev. *B 133 MHz 6.5 225 40 100-pin TQFP Pinout CY7C1231H CY7C1231H Unit DDQ DQP DDQ BYTE DDQ DDQ Page ...

Page 3

... The outputs are automatically tri-stated during [A:B] is controlled by BW correspondingly. [A: left floating selects interleaved burst sequence. CY7C1231H . During write s Page ...

Page 4

... OE. Burst Write Accesses The CY7C1231H has an on-chip burst counter that allows the user the ability to supply a single address and conduct up to four Write operations without reasserting the address inputs. ADV/LD must be driven LOW in order to load the initial address, as described in the Single Write Access section above ...

Page 5

... None None External Next External Next External Next None Next Current None data when OE is active. [A:B] CY7C1231H Second Third Address Address A1 Min. Max CYC 2t CYC 2t CYC 0 OE CEN CLK L-> L-> L-> L-> L->H Data Out ( L->H Data Out (Q) ...

Page 6

... MHz DD ≥ V ≤ 0.3V, V – 0. inputs static /2), undershoot: V (AC)> –2V (Pulse width less than t CYC IL (min.) within 200 ms. During this time V < CY7C1231H Ambient Temperature ( 0°C to +70°C 3.3V – 5%/+10% -40°C to +85°C Min. Max. 3.135 3.6 3.135 ...

Page 7

... EIA/JESD51 R = 317Ω 3.3V OUTPUT 351Ω INCLUDING JIG AND SCOPE ( 1667Ω 2.5V OUTPUT =1538Ω INCLUDING JIG AND SCOPE (b) CY7C1231H 100 TQFP Max 3. 2.5V 5 100 TQFP Package 30.32 6.85 ALL INPUT PULSES V DDQ 90% 10% GND ≤ (c) ...

Page 8

... V = 2.5V. DDQ is the time that the power needs to be supplied above V POWER is less than t and t is less than t OELZ CHZ CLZ CY7C1231H -133 Min. Max. 1 7.5 2.5 2.5 6.5 2.0 0 3.5 3 ...

Page 9

... A3 t CDV t DOH t CLZ D(A2) Q(A3) D(A2+1) t OEHZ BURST READ READ WRITE Q(A3) Q(A4) D(A2+1) Q(A4+1) DON’T CARE UNDEFINED is LOW. When CE is HIGH HIGH CY7C1231H OEV t CHZ Q(A4) Q(A4+1) D(A5) Q(A6) t DOH t OELZ BURST WRITE READ WRITE READ D(A5) Q(A6) ...

Page 10

... I/Os are in tri-state when exiting ZZ sleep mode. Document #: 001-00207 Rev Q(A2) Q(A3) STALL READ WRITE STALL Q(A3) D(A4) DON’T CARE UNDEFINED High-Z DON’T CARE CY7C1231H CHZ D(A4) Q(A5) t DOH NOP READ DESELECT CONTINUE Q(A5) DESELECT t ZZREC t RZZI DESELECT or READ Only ...

Page 11

... Please contact your local sales representative or visit Speed Package (MHz) Ordering Code Diagram 133 CY7C1231H-133AXC 51-85050 100-pin Thin Quad Flat Pack ( 1.4 mm) Lead-Free CY7C1231H-133AXI 51-85050 100-pin Thin Quad Flat Pack ( 1.4 mm) Lead-Free Package Diagram 100 0.08 MIN. 0° ...

Page 12

... Document History Page Document Title: CY7C1231H 2-Mbit (128K x 18) Flow-Through SRAM with NoBL™ Architecture Document Number: 001-00207 REV. ECN NO. Issue Date ** 347377 See ECN *A 428408 See ECN *B 459347 See ECN Document #: 001-00207 Rev. *B Orig. of Change Description of Change PCI New Data Sheet NXR Converted from Preliminary to Final ...

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