UPD78F0034BYA View Datasheet(PDF) - NEC => Renesas Technology

Part Name

Description

Manufacturer

UPD78F0034BYA

8-BIT SINGLE-CHIP MICROCONTROLLERS

NEC => Renesas Technology 

µPD78F0034B, 78F0034BY, 78F0034B(A), 78F0034BY(A)

Table 4-2. Differences Between µPD78F0034BY and Mask ROM Versions

Item

µPD78F0034BY

Mask ROM Versions

µPD780034AY Subseries µPD780024AY SubseriesNote

Internal ROM structure

Flash memory

Mask ROM

Internal ROM capacity

32 KB

µPD780031AY: 8 KB

µPD780032AY: 16 KB

µPD780033AY: 24 KB

µPD780034AY: 32 KB

µPD780021AY: 8 KB

µPD780022AY: 16 KB

µPD780023AY: 24 KB

µPD780024AY: 32 KB

Internal high-speed RAM capacity 1,024 bytes

µPD780031AY: 512 bytes

µPD780032AY: 512 bytes

µPD780033AY: 1,024 bytes

µPD780034AY: 1,024 bytes

µPD780021AY: 512 bytes

µPD780022AY: 512 bytes

µPD780023AY: 1,024 bytes

µPD780024AY: 1,024 bytes

Minimum instruction execution time Minimum instruction execution time variable function incorporated

When main system clock is selected 0.238 µs/0.48 µs/0.95 µs/1.91 µs/3.81 µs

(operation at 8.38 MHz, VDD = 4.0 to 5.5 V)

When subsystem clock is selected 122 µs (32.768 kHz)

Clock output

• 65.5 kHz, 131 kHz, 262 kHz, 524 kHz, 1.05 MHz, 2.10 MHz, 4.19 MHz, 8.38 MHz

(@ 8.38 MHz operation with main system clock)

• 32.768 kHz

(@ 32.768 kHz operation with subsystem clock)

Buzzer output

1.02 kHz, 2.05 kHz, 4.10 kHz, 8.19 kHz

(@ 8.38 MHz operation with main system clock)

A/D converter resolution

10 bits

8 bits

Mask option specification of on-chip Not available

pull-up resistor for pins P30 and P31

Available

IC pin

Not provided

Provided

VPP pin

Provided

Not provided

Electrical specifications,

recommended soldering conditions

Refer to the data sheet of individual products.

Note The µPD78F0034BY can be used as the flash memory version of the µPD780024AY Subseries.

Caution There are differences in noise immunity and noise radiation between the flash memory and mask

ROM versions. When pre-producing an application set with the flash memory version and then mass

producing it with the mask ROM version, be sure to conduct sufficient evaluations on the

commercial samples (CS) (not engineering samples (ES)) of the mask ROM versions.

20

Data Sheet U16369EJ1V0DS

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