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Details, datasheet, quote on part number:KM736V687AT
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| Part: | KM736V687AT |
| Category: | Memory => SRAM => Sync. SRAM => 2 Mb => SB & SPB |
| Description: | Description = KM736V687AT 64Kx36-Bit Synchronous Burst SRAM ;; Organization = 64Kx36 ;; Operating Mode = SB ;; VDD(V) = 3.3 ;; Access Time-tCD(ns) = 7.5,8.0,9.0 ;; Speed-tcyc (MHz) = 117,100,83 ;; I/o Voltage(V) = 2.5,3.3 ;; Package = TQFP ;; Production Status = Eol ;; Comments = Design is Not Recommended |
| Company: | Samsung Semiconductor, Inc. |
| Datasheet: | Download KM736V687AT datasheet File size : 480 kB |
| Request For quote: | Find where to buy KM736V687AT
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Datasheet text preview:
KM736V687A
Document Title
64Kx36-Bit Synchronous Burst SRAM
64Kx36 Synchronous SRAM
Revision History
Rev. No. 0.0 0.1 History Initial draft Change DC Characteristics. ICC value from 320mA to 250mA at -7. ICC value from 300mA to 230mA at -8. ICC value from 280mA to 200mA at -9. ISB value from 90mA to 70mA at -7. ISB value from 80mA to 60mA at -8. ISB value from 70mA to 50mA at -9. ISB1 value from 30mA to 20mA ISB2 value from 30mA to 20mA Final spec release. Add VDDQ Supply voltage( 2.5V ) Min tOH Parameter Change : from 2.0ns to 3.0ns Min tLZC Parameter Change : from 0ns to 3ns Draft Date July. 03. 1998 Sep. 14. 1998 Remark Preliminary Preliminary
1.0 2.0 3.0
Nov. 16. 1998 Dec. 02. 1998 Dec. 17. 1998
Fianl Final Final
The attached data sheets are prepared and approved by SAMSUNG Electronics. SAMSUNG Electronics CO., LTD. reserve the right to change the specifications. SAMSUNG Electronics will evaluate and reply to your requests and questions on the parameters of this device. If you have any questions, please contact the SAMSUNG branch office near your office, call or contact Headquarters.
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December 1998 Rev 3.0
KM736V687A
64Kx36-Bit Synchronous Burst SRAM
FEATURES
· Synchronous Operation. · On-Chip Address Counter. · Write Self-Timed Cycle. · On-Chip Address and Control Registers. · VDD= 3.3V+0.3V/-0.165V Power Supply. · VDDQ Supply Voltage 3.3V+0.3V/-0.165V for 3.3V I/O or 2.5V+0.4V/-0.125V for 2.5V I/O. · 5V Tolerant Inputs except I/O Pins. · Byte Writable Function. · Global Write Enable Controls a full bus-width write. · Power Down State via ZZ Signal. · Asynchronous Output Enable Control. · ADSP, ADSC, ADV Burst Control Pins. · LBO Pin allows a choice of either a interleaved burst or a linear burst. · Three Chip Enables for simple depth expansion with No Data Contention. · TTL-Level Three-State Output. · 100-TQFP-1420A
64Kx36 Synchronous SRAM
GENERAL DESCRIPTION
The KM736V687A is 2,359,296 bits Synchronous Static Random Access Memory designed to support zero wait state performance for advanced Pentium/Power PC based system. And with CS1 high, ADSP is blocked to control signals. It can be organized as 64K words of 36 bits. And it integrates address and control registers, a 2-bit burst address counter and high output drive circuitry onto a single integrated circuit for reduced components counts implementation of high performance cache RAM applications. Write cycles are internally self-timed and synchronous. The self-timed write feature eliminates complex off chip write pulse shaping logic, simplifying the cache design and further reducing the component count. Burst cycle can be initiated with either the address status processor(ADSP) or address status cache controller(ADSC) inputs. Subsequent burst addresses are generated internally in the systems burst sequence and are controlled by the burst address advance(ADV) input. ZZ pin controls Power Down State and reduces Stand-by current regardless of CLK. The KM736V687A is implemented with SAMSUNGs high performance CMOS technology and is available in a 100pin TQFP package. Multiple power and ground pins are utilized to minimize ground bounce.
FAST ACCESS TIMES
PARAMETER Cycle Time Clock Access Time Output Enable Access Time Symbol tCYC tCD tOE -7 8.5 7.5 3.5 -8 10 8 3.5 -9 12 9 3.5 Unit ns ns ns
LOGIC BLOCK DIAGRAM
CLK
LBO
CONTROL REGISTER
ADV ADSC
BURST CONTROL LOGIC
BURST ADDRESS COUNTER A0~A1
A0~A1
64Kx36 MEMORY ARRAY
ADSP
A0~A15
ADDRESS REGISTER
A2~A15
CS1 CS2 CS2 GW BW WEa WEb WEc WEd OE ZZ DQa0 ~ DQd7 DQPa ~ DQPd
DATA-IN REGISTER
CONTROL REGISTER
CONTROL LOGIC
OUTPUT BUFFER
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December 1998 Rev 3.0
KM736V687A
PIN CONFIGURATION(TOP VIEW)
64Kx36 Synchronous SRAM
ADSC
ADSP
WEd
WEb
WEa
WEc
ADV 83
CLK
CS1
CS2
CS2
VDD
GW
VSS
BW
OE
A6
A7
A8 82
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
81
A9 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
VSS
VDD
A5
A4
A3
A2
A1
A0
A10
A11
A12
A13
A14
LBO
N.C.
N.C.
N.C.
N.C.
A15
PIN NAME
SYMBOL A0 - A15 PIN NAME Address Inputs TQFP PIN NO. 32,33,34,35,36,37, 44,45,46,47,48,49, 81,82,99,100 83 84 85 89 98 97 92 93,94,95,96 86 88 87 64 31 SYMBOL VDD VSS N.C. D Q a 0~ a 7 D Q b 0~ b 7 DQc0~c7 D Q d 0~ d 7 DQPa~Pd VDDQ VSSQ PIN NAME Power Supply(+3.3V) Ground No Connect Data Inputs/Outputs TQFP PIN NO. 15,41,65,91 17,40,67,90 14,16,38,39,42,43,50,66 52,53,56,57,58,59,62,63 68,69,72,73,74,75,78,79 2,3,6,7,8,9,12,13 18,19,22,23,24,25,28,29 51,80,1,30 4,11,20,27,54,61,70,77 5,10,21,26,55,60,71,76
ADV ADSP ADSC CLK CS1 CS2 CS2 WE x OE GW BW ZZ LBO
Burst Address Advance Address Status Processor Address Status Controller Clock Chip Select Chip Select Chip Select Byte Write Inputs Output Enable Global Write Enable Byte Write Enable Power Down Input Burst Mode Control
Output Power Supply (2.5V or 3.3V) Output Ground
N.C.
50
DQPc DQc0 DQc1 VDDQ VSSQ DQc2 DQc3 DQc4 DQc5 VSSQ VDDQ DQc6 DQc7 N.C. VDD N.C. V SS DQd0 DQd1 VDDQ VSSQ DQd2 DQd3 DQd4 DQd5 VSSQ VDDQ DQd6 DQd7 DQPd
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
100 Pin TQFP
(20mm x 14mm)
DQPb DQb7 DQb6 VDDQ VSSQ DQb5 DQb4 DQb3 DQb2 VSSQ VDDQ DQb1 DQb0 VSS N.C. VDD ZZ DQa7 DQa6 VDDQ VSSQ DQa5 DQa4 DQa3 DQa2 VSSQ VDDQ DQa1 DQa0 DQPa
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December 1998 Rev 3.0
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