Outline Of Functions - NEC UPD789026 Series User Manual

1.7 Outline of Functions

Item
Internal memory
Minimum instruction execution time
Instruction set
I/O port
Serial interface
Timer
Timer output
Vectored interrupt
source
Power supply voltage
Operating ambient temperature
Package
The outline of the timer is as follows.
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Operating
mode
Function
Note Watchdog timer has a watchdog timer and interval timer functions. Select one of them.
Part Number
ROM Mask ROM
4 Kbytes
High-speed RAM 256 bytes
0.4/1.6 µ s (when operated at 5.0 MHz with system clock)
• 16-bit operations
• Bit manipulations (set, reset, test), etc.
Total
• CMOS input/output : 34
• 3-wire serial I/O mode/UART mode selectable: 1 channel
• 16-bit timer
• 8-bit timer/event counter : 1 channel
• Watchdog timer
2
Maskable Internal: 5, External: 4
Non-maskable Internal: 1
V
DD
T
A
• 44-pin plastic QFP (10 × 10
• 44-pin plastic LQFP (10 × 10
Interval timer
External event counter
Timer output
Capture
Interrupt source
CHAPTER 1 GENERAL
µ PD789022 µ PD789024
8 Kbytes
: 34
: 1 channel
: 1 channel
= 1.8 to 5.5 V
= −40°C to +85°C
mm, resin thickness 2.7 mm)
mm, resin thickness 1.4 mm)
16-Bit Timer 20
−
−
1 output
1 input
1
User's Manual U11919EJ3V0UM00
µ PD789025 µ PD789026
12 Kbytes 16 Kbytes
512 bytes
• 42-pin plastic shrink DIP (600 mil)
• 44-pin plastic QFP (10 × 10 mm, resin
thickness 2.7 mm)
• 44-pin plastic LQFP (10 × 10 mm, resin
thickness 1.4 mm)
8-Bit Timer/Event Watchdog Timer
Counter 00
1 channel
1 channel
1 output
−
1
µ PD78F9026A
Flash Memory
16 Kbytes
Note
1 channel
−
−
−
1
31