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參數(shù)資料
| 型號： | 37LV128-P |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 36K, 64K, and 128K Serial EPROM Family |
| 中文描述： | 36K，64K的，和128K串行EPROM家庭 |
| 文件頁數(shù)： | 6/12頁 |
| 文件大小： | 88K |
| 代理商： | 37LV128-P |
37LV36/65/128
DS21109E-page 6
1996 Microchip Technology Inc.
TABLE 11-3:
PIN ASSIGNMENTS IN THE PROGRAMMING MODE
DIP/SOIC
Pin
PLCC Pin
Name
I/O
Description
1
2
DATA
I/O
The rising edge of the clock shifts a data word in or out of the
EPROM one bit at a time.
2
4
CLK
I
Clock Input. Used to increment the internal address/word
counter for reading and programming operation.
3
6
RESET/OE
I
The rising edge of CLK shifts a data word into the EPROM
when CE and OE are HIGH; it shifts a data word out of the
EPROM when CE is LOW and OE is HIGH. The address/
word counter is incremented on the rising edge of CLK while
CE is held HIGH and OE is held LOW.
Note 1: Any modified polarity of the RESET/OE pin is
ignored in the programming mode.
4
8
CE
I
The rising edge of CLK shifts a data word into the EPROM
when CE and OE are HIGH; it shifts a data word out of the
EPROM when CE is LOW and OE is HIGH. The address/
word counter is incremented on the rising edge of CLK while
CE is held HIGH and OE is held LOW.
5
10
V
SS
Ground pin.
6
14
CEO
O
The polarity of the RESET/OE pin can be read by sensing the
CEO pin.
Note 1: The polarity of the RESET/OE pin is ignored while in
the Programming Mode. In final verification, this pin
must be monitored to go LOW one clock cycle after
the last data bit has been read.
7
17
V
PP
Programming Voltage Supply. Programming Mode is entered
by holding CE and OE HIGH and V
PP
at V
PP
1 for two rising
clock edges and then lowering V
PP
to V
PP
2 for one more ris-
ing clock edge. A word is programmed by strobing the device
with V
PP
for the duration TPGM. V
PP
must be tied to V
CC
for
normal read operation.
8
20
V
CC
+5 V power supply input.
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相關代理商/技術參數(shù) |
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|---|---|
| 37LV128-SN | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:36K, 64K, and 128K Serial EPROM Family |
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| 37LV128-TIL | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:36K, 64K, and 128K Serial EPROM Family |
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