參數(shù)資料
型號(hào)： IS61LPS51236A-250B3
廠商： INTEGRATED SILICON SOLUTION INC
元件分類： DRAM
英文描述： 256K x 72, 512K x 36, 1024K x 18 18Mb SYNCHRONOUS PIPELINED, SINGLE CYCLE DESELECT STATIC RAM
中文描述： 512K X 36 CACHE SRAM, 2.6 ns, PBGA165
封裝： 13 X 15 MM, 1 MM PITCH, PLASTIC, BGA-165
文件頁(yè)數(shù)： 21/34頁(yè)
文件大?。?/td> 229K
代理商： IS61LPS51236A-250B3
Integrated Silicon Solution, Inc. — 1-800-379-4774
Rev. D
02/11/05
21
IS61VPS25672A, IS61LPS25672A
IS61VPS51236A, IS61LPS51236A, IS61VPS102418A, IS61LPS102418A
ISSI
IEEE 1149.1 SERIAL BOUNDARY SCAN (JTAG)
The IS61LPS/VPSxxxxxx products have a serial boundary
scan Test Access Port (TAP) in the PBGA package only.
(The TQFP package not available.) This port operates in
accordance with
IEEE
Standard 1149.1-1900, but does not
include all functions required for full 1149.1 compliance.
These functions from the
IEEE specification
are excluded
because they place added delay in the critical speed path
of the SRAM. The TAP controller operates in a manner that
does not conflict with the performance of other devices
using 1149.1 fully compliant TAPs. The TAP operates using
JEDEC standard 2.5V I/O logic levels.
DISABLING THE JTAG FEATURE
The SRAM can operate without using the JTAG feature. To
disable the TAP controller, TCK must be tied LOW (Vss) to
prevent clocking of the device. TDI and TMS are internally
pulled up and may be disconnected. They may alternately
be connected to V
DD
through a pull-up resistor. TDO should
be left disconnected. On power-up, the device will start in a
reset state which will not interfere with the device operation.
TEST ACCESS PORT (TAP) - TEST CLOCK
The test clock is only used with the TAP controller. All
inputs are captured on the rising edge of TCK and outputs
are driven from the falling edge of TCK.
TEST MODE SELECT (TMS)
The TMS input is used to send commands to the TAP
controller and is sampled on the rising edge of TCK. This
pin may be left disconnected if the TAP is not used. The
pin is internally pulled up, resulting in a logic HIGH level.
TEST DATA-IN (TDI)
The TDI pin is used to serially input information to the
registers and can be connected to the input of any
register. The register between TDI and TDO is chosen by
the instruction loaded into the TAP instruction register.
For information on instruction register loading, see the
TAP Controller State Diagram. TDI is internally pulled up
and can be disconnected if the TAP is unused in an
application. TDI is connected to the Most Significant Bit
(MSB) on any register.
31 30 29
. . .
Identification Register
2
1
0
2
1
0
0
x
. . . . .
Boundary Scan
Register*
2
1
0
Bypass Register
Instruction Register
TAP CONTROLLER
Selection Circuitry
Selection Circuitry
TDO
TDI
TCK
TMS
TAP CONTROLLER BLOCK DIAGRAM
相關(guān)PDF資料
PDF描述
IS61LPS51236A-250B3I 256K x 72, 512K x 36, 1024K x 18 18Mb SYNCHRONOUS PIPELINED, SINGLE CYCLE DESELECT STATIC RAM
IS61LPS51236A-250TQ 256K x 72, 512K x 36, 1024K x 18 18Mb SYNCHRONOUS PIPELINED, SINGLE CYCLE DESELECT STATIC RAM
IS61LPS51236A-250TQI 256K x 72, 512K x 36, 1024K x 18 18Mb SYNCHRONOUS PIPELINED, SINGLE CYCLE DESELECT STATIC RAM
IS61LV 216L 32K x 17 Low Voltage High-Speed CMOS Static RAM(3.3V,32K x 16 低壓高速CMOS靜態(tài)RAM)
IS61LV3216L-15KI 32K x 16 LOW VOLTAGE CMOS STATIC RAM
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
IS61LPS51236A-250B3I 功能描述:靜態(tài)隨機(jī)存取存儲(chǔ)器 18Mb,Pipeline,Sync,512K x 36,250MHz,3.3v or 2.5v I/O,165 Ball BGA RoHS:否 制造商:Cypress Semiconductor 存儲(chǔ)容量:16 Mbit 組織:1 M x 16 訪問(wèn)時(shí)間:55 ns 電源電壓-最大:3.6 V 電源電壓-最小:2.2 V 最大工作電流:22 uA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSOP-48 封裝:Tray
IS61LPS51236A-250B3I-TR 功能描述:靜態(tài)隨機(jī)存取存儲(chǔ)器 18Mb,Pipeline,Sync,512K x 36,250MHz,3.3v or 2.5v I/O,165 Ball BGA RoHS:否 制造商:Cypress Semiconductor 存儲(chǔ)容量:16 Mbit 組織:1 M x 16 訪問(wèn)時(shí)間:55 ns 電源電壓-最大:3.6 V 電源電壓-最小:2.2 V 最大工作電流:22 uA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSOP-48 封裝:Tray
IS61LPS51236A-250B3LI 功能描述:靜態(tài)隨機(jī)存取存儲(chǔ)器 18Mb 512Kx36 250MHz Sync 靜態(tài)隨機(jī)存取存儲(chǔ)器 3.3v RoHS:否 制造商:Cypress Semiconductor 存儲(chǔ)容量:16 Mbit 組織:1 M x 16 訪問(wèn)時(shí)間:55 ns 電源電壓-最大:3.6 V 電源電壓-最小:2.2 V 最大工作電流:22 uA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSOP-48 封裝:Tray
IS61LPS51236A-250B3LI-TR 功能描述:靜態(tài)隨機(jī)存取存儲(chǔ)器 18Mb 512Kx36 250MHz Sync 靜態(tài)隨機(jī)存取存儲(chǔ)器 3.3v RoHS:否 制造商:Cypress Semiconductor 存儲(chǔ)容量:16 Mbit 組織:1 M x 16 訪問(wèn)時(shí)間:55 ns 電源電壓-最大:3.6 V 電源電壓-最小:2.2 V 最大工作電流:22 uA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSOP-48 封裝:Tray
IS61LPS51236A-250B3-TR 功能描述:靜態(tài)隨機(jī)存取存儲(chǔ)器 18Mb 512Kx36 250MHz Sync 靜態(tài)隨機(jī)存取存儲(chǔ)器 3.3v RoHS:否 制造商:Cypress Semiconductor 存儲(chǔ)容量:16 Mbit 組織:1 M x 16 訪問(wèn)時(shí)間:55 ns 電源電壓-最大:3.6 V 電源電壓-最小:2.2 V 最大工作電流:22 uA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSOP-48 封裝:Tray
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