CY7C1217F-100AC Cypress Semiconductor Corporation., CY7C1217F-100AC Datasheet

no-image

CY7C1217F-100AC

Manufacturer Part Number
CY7C1217F-100AC
Description
Manufacturer
Cypress Semiconductor Corporation.
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
CY7C1217F-100AC
Manufacturer:
CY
Quantity:
963
Part Number:
CY7C1217F-100AC
Manufacturer:
CYPRESS
Quantity:
364
Part Number:
CY7C1217F-100AC
Manufacturer:
CYP
Quantity:
20 000
Cypress Semiconductor Corporation
Document #: 38-05430 Rev. *A
Features
Functional Description
The CY7C1217F is a 32,768 x 36 synchronous cache RAM
designed to interface with high-speed microprocessors with
minimum glue logic. Maximum access delay from clock rise is
Note:
1. For best-practices recommendations, please refer to the Cypress application note System Design Guidelines on www.cypress.com.
• 32K x 36 common I/O
• 3.3V –5% and +10% core power supply (V
• 3.3V I/O supply (V
• Fast clock-to-output times
• Provide high-performance 2-1-1-1 access rate
• User-selectable burst counter supporting Intel
• Separate processor and controller address strobes
• Synchronous self-timed write
• Asynchronous output enable
• Supports 3.3V I/O level
• Offered in JEDEC-standard 100-pin TQFP
• “ZZ” Sleep Mode option
A0, A1, A
Logic Block Diagram
— 7.5 ns (117-MHz version)
— 8.0 ns (100-MHz version)
Pentium
MODE
ADSC
ADSP
BW
BWE
ADV
BW
BW
BW
CLK
GW
CE1
CE2
CE3
ZZ
OE
A
D
B
C
£
interleaved or linear burst sequences
CONTROL
SLEEP
DDQ
)
[1]
WRITE REGISTER
WRITE REGISTER
WRITE REGISTER
WRITE REGISTER
WRITE REGISTER
DQ
DQ
DQ
DQ
BYTE
B
BYTE
BYTE
,
BYTE
BYTE
C
A
D
,
DQP
,
,
DQP
REGISTER
DQP
DQP
ENABLE
B
C
CLR
D
A
REGISTER
ADDRESS
AND LOGIC
COUNTER
1-Mbit (32K x 36) Flow-Through Sync SRAM
BURST
Q1
Q0
DD
3901 North First Street
A
)
[1:0]
£
7.5 ns (117-MHz version). A 2-bit on-chip counter captures the
first address in a burst and increments the address automati-
cally 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
( CE
Control inputs ( ADSC , ADSP , and ADV ), Write Enables
( BW
i nputs include the Output Enable ( OE ) and the ZZ pin .
The CY7C1217F 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 CY7C1217F operates from a +3.3V core power supply
while all outputs may operate with a +3.3V supply. All inputs
and outputs are JEDEC-standard JESD8-5-compatible.
WRITE REGISTER
WRITE REGISTER
WRITE REGISTER
WRITE REGISTER
DQ
1
DQ
DQ
DQ
[A:D]
), depth-expansion Chip Enables (CE
BYTE
BYTE
B
BYTE
D
BYTE
,
A
,
C
DQP
,
,
DQP
DQP
DQP
, and BWE ), and Global Write ( GW ). Asynchronous
B
D
A
C
San Jose
MEMORY
ARRAY
,
CA 95134
SENSE
AMPS
Revised April 6, 2004
OUTPUT
BUFFERS
CY7C1217F
2
REGISTERS
and CE
INPUT
408-943-2600
3
), Burst
DQP
DQP
DQP
DQP
DQs
A
B
C
D

Related parts for CY7C1217F-100AC

CY7C1217F-100AC Summary of contents

Page 1

... Supports 3.3V I/O level • Offered in JEDEC-standard 100-pin TQFP • “ZZ” Sleep Mode option [1] Functional Description The CY7C1217F is a 32,768 x 36 synchronous cache RAM designed to interface with high-speed microprocessors with minimum glue logic. Maximum access delay from clock rise is Logic Block Diagram A0, A1, A ...

Page 2

... SSQ V 27 DDQ DQP 30 D Document #: 38-05430 Rev. *A 117 MHz 100 MHz 7.5 8.0 220 205 40 40 100-Pin TQFP CY7C1217F CY7C1217F Unit DQP DDQ 76 V SSQ BYTE B B ...

Page 3

... Read cycle. The direction of the pins is controlled When OE is asserted LOW, the pins behave as outputs. When HIGH, DQs and DQP three-state condition. Power supply inputs to the core of the device. Ground for the core of the device. CY7C1217F , CE , and CE are 1 2 ...

Page 4

... Maximum access delay from the clock rise ( 7.5 ns (117-MHz device). CDV The CY7C1217F supports secondary cache in systems utilizing either a linear or interleaved burst sequence. The interleaved burst order supports Pentium and i486™ processors. The linear burst sequence is suited for processors that utilize a linear burst sequence ...

Page 5

... and BWE = L or GW= L. WRITE = H when all Byte Write Enable signals CY7C1217F Second Third Address Address Min. Max CYC ...

Page 6

... CY7C1217F ADV WRITE OE CLK L-H Three-State L L-H Three-State L-H Three-State ...

Page 7

... CYC IL (min.) within 200 ms. During this time V < CY7C1217F Ambient ] Temperature + 3.3V 5%/+10% CY7C1217F Min. Max. 3.135 3.135 = –4.0 mA 2.4 = 8 –0.3 5 –30 –5 –5 –300 8.0-ns cycle, 117 MHz 10-ns cycle, 100 MHz 8.0-ns cycle, 117 MHz ...

Page 8

... V POWER is less than t and t is less than t to eliminate bus contention between SRAMs when sharing the same OELZ CHZ CLZ CY7C1217F TQFP Package 41.83 9.99 Max ALL INPUT PULSES V DDQ ...

Page 9

... Document #: 38-05430 Rev. *A [10, 11] Description t ADS t ADH A2 t WEH t t ADVH ADVS ADV suspends burst. t CDV t OELZ t OEHZ t DOH Q(A2 Q(A1) DON’T CARE is HIGH and CE is LOW. When CE is HIGH CY7C1217F 117 MHz 100 MHz Min. Max. Min. Max. 2.0 2.0 2.0 2.0 2.0 2.0 2.0 2.0 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Deselect Cycle ...

Page 10

... Full width Write can be initiated by either GW LOW HIGH, BWE LOW and BW Document #: 38-05430 Rev WES WEH DH D(A2 BURST WRITE DON’T CARE UNDEFINED [A:D] CY7C1217F ADSC extends burst. t ADS t ADH A3 t WES t WEH t ADVS t ADVH ADV suspends burst D(A3) D( Extended BURST WRITE LOW ...

Page 11

... The data bus (Q) remains in High-Z following a Write cycle unless an ADSP , ADSC , or ADV cycle is performed. 19 HIGH. Document #: 38-05430 Rev WES WEH OELZ D(A3) t OEHZ t CDV Q(A4) Single WRITE DON’T CARE CY7C1217F A5 D(A5) Q(A4+1) Q(A4+2) Q(A4+3) Back-to-Back BURST READ UNDEFINED Page D(A6) WRITEs ...

Page 12

... Speed (MHz) Ordering Code 100 CY7C1217F-100AC Please contact your local Cypress sales representative for availability of 117-MHz speed grade option. Notes: 20. Device must be deselected when entering ZZ mode. See Cycle Descriptions table for all possible signal conditions to deselect the device. 21. DQs are in High-Z when exiting ZZ sleep mode. ...

Page 13

... The inclusion of Cypress Semiconductor products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress Semiconductor against all charges. CY7C1217F 51-85050-*A ...

Page 14

... Document History Page Document Title: CY7C1217F 1-Mbit (32K x 36) Flow-Through Sync SRAM Document Number: 38-05430 REV. ECN NO. Issue Date ** 200780 See ECN *A 213321 See ECN Document #: 38-05430 Rev. *A Orig. of Change Description of Change NJY New Data Sheet VBL Shaded selection guide and Characteristics table for non-active parts ...

Related keywords