UPD78044F datasheet(21/90 Pages) NEC

21 / 90 page

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

Data Sheet U16369EJ1V0DS

5. DIFFERENCES BETWEEN

µµµµµPD78F0034B, 78F0034BY AND µµµµµPD78F0034A, 78F0034AY

Table 5-1 shows the differences between the

µPD78F0034B and µPD78F0034A, and Table 5-2 shows differences

between the

µPD78F0034BY and 78F0034AY.

Table 5-1. Differences Between

µµµµµPD78F0034B and µµµµµPD78F0034A

Item

µPD78F0034B

µPD78F0034A

Guaranteed operating speed

4.5 to 5.5 V

12 MHz (0.166

µs)

8.38 MHz (0.238

µs)

(operating frequency)

4.0 to 5.5 V

8.38 MHz (0.238

µs)

8.38 MHz (0.238

µs)

3.0 to 5.5 V

8.38 MHz (0.238

µs)

5 MHz (0.4

µs)

2.7 to 5.5 V

5 MHz (0.4

µs)

5 MHz (0.4

µs)

1.8 to 5.5 V

1.25 MHz (1.6

µs)

1.25 MHz (1.6

µs)

Maximum instruction execution time

Minimum instruction execution time variable function incorporated

When main system clock is selected

0.166

µs/0.333 µs/0.666 µs/1.33 µs/2.66 µs

0.238

µs/0.48 µs/0.95 µs/1.91 µs/3.81 µs

(@ 12 MHz operation, VDD = 4.5 to 5.5 V)

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

When subsystem clock is selected

122

µs (32.768 kHz)

Clock output

• 93.75 kHz, 187.5 kHz, 375 kHz, 750 kHz,

• 65.5 kHz, 131 kHz, 262 kHz, 524 kHz,

1.25 MHz, 3 MHz, 6 MHz, 12 MHz (@ 12

1.05 MHz, 2.10 MHz, 4.19 MHz, 8.38

MHz operation with main system clock)

MHz (@ 8.38 MHz operation with main

• 32.768 kHz (@ 32.768 kHz operation

system clock)

with subsystem clock)

• 32.768 kHz (@ 32.768 kHz operation

with subsystem clock)

Buzzer output

1.46 kHz, 2.93 kHz, 5.86 kHz, 11.7 kHz

1.02 kHz, 2.05 kHz, 4.10 kHz, 8.19 kHz

(@ 12 MHz operation with main system

(@ 8.38 MHz operation with main system

clock)

Communication mode of flash memory

• 3-wire serial I/O:

2 channels

Note

• 3-wire serial I/O:

2 channels

Note

programming

• UART:

1 channel

• UART:

1 channel

• Pseudo 3-wire serial I/O: 1 channel

Electrical specifications, recommended

Refer to the data sheet of individual products.

soldering conditions

Note

The

µPD78F0034B can use one channel (serial interface SIO30) as a handshake mode.

The

µPD78F0034A cannot use a handshake mode.

Remark

The operating frequency ratings of the

µPD78F0034B and the expanded-specification products of the

mask ROM versions of the

µPD780024A, 780034A Subseries are the same. The operating frequency

ratings of the

µPD78F0034A and the conventional products of the mask ROM versions of the

µPD780024A, 780034A Subseries are the same.

UPD78044F Datasheet(PDF) 21 Page - NEC

UPD78044F Datasheet(HTML) 21 Page - NEC

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