Features: ` Internal memory
` Program memory (ROM)
: 8068 * 8 bits (PD75108)
: 6016 * 8 bits (PD75106)
: 4096 * 8 bits (PD75104)
` Data memory (RAM)
: 512 * 4 bits (PD75108)
: 320 * 4 bits (PD75106, 75104)
` New architecture "75X series" rivaling 8-bit microcomputers
` 43 systematically organized instructions
` A wealth of bit manipulation instructions
` 8-bit data transfer, compare, operation, increment, and decrement instructions
` 1-byte relative branch instructions
` GETI instruction executing 2-/3-byte instruction with one byte
` High speed. Minimum instruction execution time: 0.95 s (at 4.19 MHz), 5 V
` Power-saving, instruction time change function: 0.95 s/1.91 s/15.3 s (at 4.19 MHz)
` I/O port pins as many as 58
` Three channels of 8-bit timers
` 8-bit serial interface
` Multiplexed vector interrupt function
` Model with PROM is available: PD75P108B (One-time PROM, EPROM)
Pinout
Specifications
|
Parameter |
Symbol |
Conditions |
Ratings |
Unit |
| Supply Voltage |
VDD |
|
-0.3 to +7.0 |
V |
| Input Voltage |
VI2*1 |
Ports 12 to 14 |
w/pull-up
resistor |
-0.3 to VDD+0.3 |
V |
|
Open drain |
-0.3 to +13 |
| Output Voltage |
VO |
|
-0.3 to VDD +0.3 |
V |
High-Level Output
Current |
IOH |
All pins |
|
-30 |
mA |
Low-Level Output
Current |
IOL*2 |
1 pin |
Peak |
30 |
mA |
| rms |
|
mA |
|
Total of ports 0, 2 to 4, 12 to 14 |
Peak |
100 |
mA |
| rms |
60 |
mA |
|
Total of ports 5 to 9 |
Peak |
100 |
mA |
| rms |
60 |
mA |
| Operating Temperature |
Topt |
|
-40 to +85 |
|
| Storage Temperature |
Tstg |
|
-65 to +150 |
|
*1: The power supply impedance (pull-up resistance) must be 50 k? or higher when a voltage higher than 10 V is applied to ports 12, 13, and 14.
2: rms = Peak value x Duty
DescriptionPD75108 is a 4-bit single-chip microcomputer integrating timer/event counters, serial interface, and vector interrupt function, in addition to a CPU, ROM, RAM, and I/O ports, on a single chip. Operating at high speeds, the microcomputer allows data to be manipulated in units of 1, 4, or 8 bits. In addition, various bit manipulation instructions are provided to reinforce I/O manipulation capability. Equipped with I/Os for interfacing with peripheral circuits operating on a different supply voltage, outputs that can directly drive LEDs, and analog inputs, PD75108 is suitable for controlling such systems as VTRs, acoustic products, button telephones, radio communications equipment, and printers. A pin-compatible EPROM model is also available for evaluation of system development and small-scale production of application systems.
PD75108 Data Sheet
