UPD78F0138 NEC, UPD78F0138 Datasheet - Page 425

• Manufacturer Part Number: UPD78F0138
• Description: (UPD78xxxx) 8-Bit Single-Chip Microcontrollers
• Manufacturer: NEC

Mask ROM versions are provided with the following mask options.
1.
2.
3.
Note This option cannot be selected in (A1) and (A2) grade products because the supply voltage V
Flash memory versions that support the mask options of the mask ROM versions are as follows.
POC cannot be used
POC used
(V
POC used
(V
Power-on-clear (POC) circuit
• POC cannot be used
• POC used (detection voltage: V
• POC used (detection voltage: V
Ring-OSC
• Cannot be stopped
• Can be stopped by software
Pull-up resistor of P60 to P63 pins
• Pull-up resistor can be incorporated in 1-bit units
POC
POC
5.5 V.
(Pull-up resistors are not available for the flash memory versions.)
= 2.85 V ±0.15 V)
= 3.5 V ±0.2 V)
Table 25-1. Flash Memory Versions Supporting Mask Options of Mask ROM Versions
POC Circuit
Mask Option
Cannot be stopped
Can be stopped by software
Cannot be stopped
Can be stopped by software
Cannot be stopped
Can be stopped by software
CHAPTER 25 MASK OPTIONS
POC
POC
Ring-OSC
User’s Manual U16228EJ2V0UD
= 2.85 V ±0.15 V)
= 3.5 V ±0.2 V)
Note
µ
78F0138M1(A), 78F0134M1(A1), 78F0138M1(A1)
µ
78F0138M2(A), 78F0134M2(A1), 78F0138M2(A1)
µ
78F0138M3(A)
µ
78F0138M4(A)
µ
78F0138M5(A), 78F0134M5(A1), 78F0138M5(A1)
µ
78F0138M6(A), 78F0134M6(A1), 78F0138M6(A1)
PD78F0134M1, 78F0138M1, 78F0134M1(A),
PD78F0134M2, 78F0138M2, 78F0134M2(A),
PD78F0134M3, 78F0138M3, 78F0134M3(A),
PD78F0134M4, 78F0138M4, 78F0134M4(A),
PD78F0134M5, 78F0138M5, 78F0134M5(A),
PD78F0134M6, 78F0138M6, 78F0134M6(A),
Flash Memory Version
DD
is 3.3 to
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