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參數(shù)資料
| 型號： | UPD78P368AGF-3B9 |
| 廠商： | NEC Corp. |
| 元件分類： | 圓形連接器 |
| 英文描述： | Circular Connector; No. of Contacts:56; Series:MS27467; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:25; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:25-4 RoHS Compliant: No |
| 中文描述： | 16 / 8位單片機 |
| 文件頁數(shù)： | 15/52頁 |
| 文件大?。?/td> | 545K |
| 代理商： | UPD78P368AGF-3B9 |
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15
m
PD78P368A
4. PROM PROGRAMMING
The
m
PD78P368A is provided with an electrically writable PROM of 48K
￥
8 bits. When programming this PROM,
use the MODE0/V
PP
and MODE1 pins to set the
m
PD78P368A to the PROM programming mode.
The
m
PD78P368A provides programming characteristics compatibility with the
m
PD27C1001A.
Table 4-1 Pin Functions in Programming Mode
4.1 OPERATION MODE
To enter the program write/verify mode, set each pin as follows: MODE0/V
PP
= H, MODE1 = L. In addition, any
of the operation modes listed in Table 4-2 can be selected by setting the CE, OE, and PGM pins in this mode.
Set the
m
PD78P368A to the read mode in order to read the contents of PROM.
Handle unused pins as described in PIN CONFIGURATION (2).
Table 4-2 Operation Modes for PROM Programming
Remark
￥
: L or H
Programming mode
A0-A16
D0-D7
PGM
CE
OE
Normal operation mode
P00-P07, P21, P20, P80-P85, P30
P40-P47
ASTB
P91
P90
MODE0/V
PP
MODE1
Function
Address input
Data input
Program pulse
Chip enable
Output enable
Program voltage
Mode control
Mode
Page data latch
Page program
Byte program
Program verify
Program inhibit
Read
Output disable
Standby
MODE1
CE
H
H
L
L
￥
￥
L
L
H
OE
L
H
H
L
L
H
L
H
￥
PGM
H
L
L
H
L
H
H
￥
￥
MODE0/V
PP
D0-D7
Data input
High impedance
Data input
Data output
High impedance
Data output
High impedance
High impedance
V
DD
L
+12.5 V
+5 V
+6.5 V
+5 V
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