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參數(shù)資料
| 型號： | μPD75P70076 |
| 廠商： | NEC Corp. |
| 英文描述： | 4 Bit Single Chip Microcontrollers(4位單片微控制器) |
| 中文描述： | 4位單片微控制器（4位單片微控制器） |
| 文件頁數(shù)： | 29/62頁 |
| 文件大?。?/td> | 290K |
| 代理商： | ΜPD75P70076 |
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m
PD75P0076
29
8. ONE-TIME PROM (PROGRAM MEMORY) WRITE AND VERIFY
The program memory in the
m
PD75P0076 is a 16384 x 8-bit electronic write-enabled one-time PROM. The pins listed
in the table below are used for this PROM’s write/verify operations. Clock input from the X1 pins is used instead of address
input as a method for updating addresses.
Pin name
Function
V
PP
Pin (usually V
DD
) where programming voltage is applied during
program memory write/verify
X1, X2
Clock input pin for address updating during program memory
write/verify. Input the X1 pin’s inverted signal to the X2 pin.
MD0 to MD3
Operation mode selection pin for program memory write/verify
D0/P40 to D3/P43 (lower 4)
D4/P50 to D7/P53 (upper 4)
8-bit data I/O pin for program memory write/verify
V
DD
Pin where power supply voltage is applied. Power voltage
range for normal operation is 1.8 to 5.5 V. Apply 6 V for program
memory write/verify.
Caution
Pins not used for program memory write/verify should be handled as follows.
All unused pins except XT2 ......Connect to Vss via a pull-down resistor
XT2 pin ........................................Leave open
8.1 Operation Modes for Program Memory Write/Verify
When +6 V is applied to the
m
PD75P0076’s V
DD
pin and +12.5 V is applied to its V
PP
pin, program memory write/verify
modes are in effect. Furthermore, the following detailed operation modes can be specified by setting pins MD0 to MD3
as shown below.
Operation mode specification
Operation mode
V
PP
V
DD
MD0
MD1
MD2
MD3
+12.5 V
+6 V
H
L
H
L
Zero-clear program memory address
L
H
H
H
Write mode
L
L
H
H
Verify mode
H
X
H
H
Program inhibit mode
X: L or H
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| PD75R-104K | 功能描述:固定電感器 100uH 10% .5ohm Choke SMT Power Ind RoHS:否 制造商:AVX 電感:10 uH 容差:20 % 最大直流電流:1 A 最大直流電阻:0.075 Ohms 工作溫度范圍:- 40 C to + 85 C 自諧振頻率:38 MHz Q 最小值:40 尺寸:4.45 mm W x 6.6 mm L x 2.92 mm H 屏蔽:Shielded 端接類型:SMD/SMT 封裝 / 箱體:6.6 mm x 4.45 mm |
| PD75R-104K/R500 | 制造商:API Delevan 功能描述:PD75R series 100 uH 10 % 740 mA SMT Power Choke |
| PD75R-123K | 功能描述:固定電感器 12uH 10% .085ohm Choke SMT Power Ind RoHS:否 制造商:AVX 電感:10 uH 容差:20 % 最大直流電流:1 A 最大直流電阻:0.075 Ohms 工作溫度范圍:- 40 C to + 85 C 自諧振頻率:38 MHz Q 最小值:40 尺寸:4.45 mm W x 6.6 mm L x 2.92 mm H 屏蔽:Shielded 端接類型:SMD/SMT 封裝 / 箱體:6.6 mm x 4.45 mm |
| PD75R-123K TR 500 | 制造商:API Delevan 功能描述:POWER CHOKE 12 UH 10% SMD |
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