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參數(shù)資料
| 型號： | UPD17P207GF-001-3B9 |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PQFP80 |
| 封裝： | 14 X 20 MM, PLASTIC, QFP-80 |
| 文件頁數(shù)： | 7/34頁 |
| 文件大?。?/td> | 311K |
| 代理商： | UPD17P207GF-001-3B9 |
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PD17P207
13
2.
ONE-TIME PROM (PROGRAM MEMORY) WRITING, READING, AND VERIFICATION
PD17P207 sets the PROM mode when PROM writing, reading or verification as shown in Table 2-1.
In PROM mode, no address input pin is used. Instead, the address is updated by the clock for input from the CLK pin.
Function
Applies program voltage (12.5 V).
Inputs address update clock.
Selects operation mode.
Inputs and outputs 8-bit data.
Applies supply voltage (6 V).
Pin Name
VPP
CLK
MD0-MD3
D0-D7
VDD
2.1
OPERATION MODE FOR WRITING, READING, AND VERIFICATION OF PROGRAM MEMORY
If +6 V is applied to the VDD and +12.5 V to the VPP pin after
PD17P207 has been placed in the reset status for a fixed
time (VDD = 5V, RESET = Low level),
PD17P207 enters program memory write, read, or verify mode.
The MD0 to MD3 pins are used to set the operation modes listed in Table 2-2.
Leave the pins not used for program memory writing, reading, or verification open or ground through pull-down resistors
(470
). (Refer to (2) PROM programming mode in PIN CONFIGURATION.)
Table 2-2. Operating Mode for Program Memory Writing, Reading or Verification
Operating Mode Specification
Remark
x: L or H
MD0
MD1
MD2
MD3
HL
H
L
LH
H
LL
H
Hx
H
VDD
+6 V
VPP
+12.5 V
Operating Mode
Program memory address 0 clear mode
Write mode
Read/verify mode
Program inhibit mode
Table 2-1. Pins Used for Program Memory Writing, Reading, or Verification
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| UPD17P207GF-002 | 制造商:NEC 制造商全稱:NEC 功能描述:4-BIT SINGLE-CHIP MICROCONTROLLER WITH LCD CONTROLLER/DRIVER AND A/D CONVERTER FOR INFRARED REMOTE CONTROL TRANSMITTER |
| UPD17P207GF-002-3B9 | 制造商:NEC 制造商全稱:NEC 功能描述:4-BIT SINGLE-CHIP MICROCONTROLLER WITH LCD CONTROLLER/DRIVER AND A/D CONVERTER FOR INFRARED REMOTE CONTROL TRANSMITTER |
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| UPD17P207GF-3B9 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller |
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