參數(shù)資料
型號(hào): μPD75P70076
廠(chǎng)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(yè)數(shù): 15/62頁(yè)
文件大?。?/td> 290K
代理商: ΜPD75P70076
m
PD75P0076
15
5. DIFFERENCES BETWEEN
m
PD75P0076 AND
m
PD750064, 750066 AND 750068
The
m
PD75P0076 replaces the internal mask ROM in the
m
PD750064, 750066, and 750068 with a one-time PROM and
features expanded ROM capacity. The
m
PD75P0076’s Mk I mode supports the Mk I mode in the
m
PD750064, 750066,
and 750068 and the
m
PD75P0076’s Mk II mode supports the Mk II mode in the
m
PD750064, 750066, and 750068.
Table 5-1 lists differences among the
m
PD75P0076 and the
m
PD750064, 750066, 750068. Be sure to check the
differences between corresponding versions beforehand, especially when a PROM version is used for debugging or
prototype testing of application systems and later the corresponding mask ROM version is used for full-scale production.
For further description of CPU functions and internal hardware, see the
m
PD750064 and 750068 Preliminary Product
Information (U10165E)
.
Table 5-1. Differences between
m
PD75P0076 and
m
PD750064, 750066, 750068
Item
m
PD750064
m
PD750066
m
PD750068
m
PD75P0076
Program counter
12-bit
13-bit
14-bit
Program memory (bytes)
Mask ROM
4096
Mask ROM
6144
Mask ROM
8192
One-time PROM
16384
Data memory (x 4 bits)
512
Mask options
Pull-up resistor for
ports 4 and 5
Yes (on-chip specifiable)
No (off chip)
Wait time when
RESET
Yes (2
17
/f
X
, 2
15
/f
X
selectable)
Note
No (fixed at 2
15
/f
X
)
Note
Feedback resistor of
subsystem clock
Yes (Use/not use selectable)
No (Use)
Pin configuration
Pins 6 to 9
P33 to P30
P33/MD3 to P30/MD0
Pin 20
IC
V
PP
Pins 34 to 37
P53 to P50
P53/D7 to P53/D4
Pins 38 to 41
P43 to P40
P43/D3 to P40/D0
Other
Noise resistance and noise radiation may differ due to different circuit complexities
and mask layouts.
Note
2
17
/f
X
is 21.8 ms in 6.0 MHz operation and 31.3 ms in 4.19 MHz operation.
2
15
/f
X
is 5.46 ms in 6.0 MHz operation and 7.81 ms in 4.19 MHz operation.
Caution
Noise resistance and noise radiation are different in PROM version and mask ROM versions. If using
a mask ROM version instead of the PROM version for processes between prototype development and
full production, be sure to fully evaluate the CS of the mask ROM version (not ES).
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