NEC uPD78F4225Y, Manual

Page: 3 / 30

3
µ
PD78F4225Y
FUNCTIONS
Item Function
Number of basic instructions 113
(mnemonics)
General-purpose register 8 bits
×
16 registers
×
8 banks, or 16 bits
×
8 registers
×
8 banks (memory mapping)
Minimum instruction execution • 160 ns/320 ns/640 ns/1280 ns/2560 ns (main system clock: f
XX
= 12.5 MHz)
time • 61
µ
s (subsystem clock: f
XX
= 32.768 KHz)
Internal Flash memory 128 KBytes
memory
RAM 4352 Bytes
Memory space 1 MB with program and data spaces combined
I/O port Total 67
CMOS Input 8
CMOS I/O 59
Pins with pull-up 57
resistor
LEDs direct 16
drive output
Real-time output port 4 bits
×
2, or 8 bits
×
1
Timer/counter 16-bit timer/counter : timer register
×
1 Pulse output
Capture/compare register
×
2 • PWM/PPG output
• Square wave output
• One-shot pulse output
8-bit timer/counter 1 : timer register
×
1 Pulse output
Compare register
×
1 • PWM output
• Square wave output
8-bit timer/counter 2 : timer register
×
1 Pulse output
Compare register
×
1 • PWM output
• Square wave output
8-bit timer/counter 5 : timer register
×
1
Compare register
×
1
8-bit timer/counter 6 : timer register
×
1
Compare register
×
1
Serial interface UART/IOE (3-wire serial I/O): 2 channels (on-chip baud rate generator)
CSI (3-wire serial I/O, I
2
C bus supporting multi master): 1 channel
A/D converter 8-bit resolution
×
8 channels
D/A converter 8-bit resolution
×
2 channels
Clock output Selectable from f
XX
, f
XX
/2, f
XX
/2
2
, f
XX
/2
3
, f
XX
/2
4
, f
XX
/2
5
, f
XX
/2
6
, f
XX
/2
7
, f
XT
Buzzer output Selectable from f
XX
/2
10
, f
XX
/2
11
, f
XX
/2
12
, f
XX
/2
13
Watch timer 1 channel
Watchdog timer 1 channel
Standby • HALT/STOP/IDLE mode
• In power-saving mode (with subsystem clock): HALT/IDLE mode
Interrupt Hardware 25 (internal: 18, external: 7)
Software BRK instruction, BRKCS instruction, operand error
Non-maskable Internal: 1, external: 1
Maskable Internal: 17, external: 6
• 4 programmable priority levels
• 3 service modes: vectored interrupt/macro service/context switching
Supply voltage V
DD
= 1.8 to 5.5 V
Package • 80-pin plastic QFP (14
×
14 mm)
• 80-pin plastic TQFP (fine pitch) (12
×
12 mm)
Note The pins with ancillary functions are included in the I/O pins.
Pins with
ancillary
functions
Note