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參數(shù)資料
| 型號： | X25138V8I-V |
| 英文描述： | 5MHz SPI Serial E2PROM with Block Lock PROTECTION |
| 中文描述： | 5MHz的SPI串行E2PROM的區(qū)塊可鎖定的保護 |
| 文件頁數(shù)： | 2/18頁 |
| 文件大?。?/td> | 88K |
| 代理商： | X25138V8I-V |
X25138
2
PIN DESCRIPTIONS
Serial Output (SO)
SO is a push/pull serial data output pin. During a read
cycle, data is shifted out on this pin. Data is clocked
out by the falling edge of the serial clock.
Serial Input (SI)
SI is the serial data input pin. All opcodes, byte
addresses, and data to be written to the memory are
input on this pin. Data is latched by the rising edge of
the serial clock.
Serial Clock (SCK)
The Serial Clock controls the serial bus timing for data
input and output. Opcodes, addresses, or data present
on the SI pin are latched on the rising edge of the
clock input, while data on the SO pin change after the
falling edge of the clock input.
Chip Select (CS)
When CS is HIGH, the X25138 is deselected and the
SO output pin is at high impedance and unless an
internal write operation is underway, the X25138 will be
in the standby power mode. CS LOW enables the
X25138, placing it in the active power mode. It should
be noted that after power-up, a HIGH to LOW transition
on CS is required prior to the start of any operation.
Write Protect (WP)
When WP is LOW and the nonvolatile bit WPEN is “1”,
nonvolatile writes to the X25138 status register are
disabled, but the part otherwise functions normally.
When WP is held HIGH, all functions, including
nonvolatile writes operate normally. WP going LOW
while CS is still LOW will interrupt a write to the
X25138 status register. If the internal write cycle has
already been initiated, WP going LOW will have no
affect on a write.
The WP pin function is blocked when the WPEN bit in
the status register is “0”. This allows the user to install
the X25138 in a system with WP pin grounded and still
be able to write to the status register. The WP pin func-
tions will be enabled when the WPEN bit is set “1”.
Hold (HOLD)
HOLD is used in conjunction with the CS pin to pause
the device. Once the part is selected and a serial
sequence is underway, HOLD may be used to pause
14 Lead SOIC
NC
NC
1
2
3
4
7
6
5
X25138
VSS
NC
NC
NC
NC
.228”
.336”
8
9
10
11
12
14
13
8 Lead PDIP/SOIC
VCC
HOLD
SCK
SI
CS
SO
1
2
3
4
6
5
7
8
X25138
VSS
WP
CS
SO
WP
VCC
HOLD
SCK
SI
8-Lead XBGA: Top View
S0
SI
WP
SCK
V
CC
V
SS
CS
HOLD
8
7
6
5
1
2
3
4
.238”
SCK
SI
Vss
WP
1
2
3
4
8
7
6
5
8-LEAD TSSOP
X25138
.252 in.
CS
SO
HOLD
Vcc
.078”
3091 FM 03
.114”
PIN NAMES
7037 FRM T01
Symbol
CS
SO
SI
SCK
WP
V
SS
V
CC
HOLD
NC
Description
Chip Select Input
Serial Output
Serial Input
Serial Clock Input
Write Protect Input
Ground
Supply Voltage
Hold Input
No Connect
PIN CONFIGURATION
相關PDF資料 |
PDF描述 |
|---|---|
| X25138Z-V | 5MHz SPI Serial E2PROM with Block Lock PROTECTION |
| X25138ZT2.5 | 5MHz SPI Serial E2PROM with Block Lock PROTECTION |
| X25160V-2.7 | CONNECTOR ACCESSORY |
| X25160P-2.7 | SPI Serial E2PROM With Block LockTM Protection |
| X25160 | SPI Serial E2PROM With Block LockTM Protection |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| X25138V8M | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SPI Serial EEPROM |
| X25138V8M-2.5 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SPI Serial EEPROM |
| X25138V8T2.5 | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:5MHz SPI Serial E2PROM with Block Lock PROTECTION |
| X25138V8T-V | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:5MHz SPI Serial E2PROM with Block Lock PROTECTION |
| X25138V8-V | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:5MHz SPI Serial E2PROM with Block Lock PROTECTION |
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