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MFG:IC D/C:FDS6690A
Part Number: 7549
MFG: IC
D/C: FDS6690A
Description: The 7549 Group is the 8-bit microcomputer based on the 740 family core technology.The 7549 Gro...
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7549
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DataSheet
General Description
7549 General Description
The 7549 Group is the 8-bit microcomputer based on the 740 family core technology.
The 7549 Group has an 8-bit timer, 16-bit timer, serial interface, A/D converter, power-on reset circuit and the low voltage detection circuit. Also, the Function set ROM is equipped.
7549 Maximum Ratings
| Symbol | Parameter | Conditions | Ratings | Unit |
| VCC | Power source voltage | All voltages are based on VSS. When an input voltage is measured, output transistors are cut off. |
−0.3 to 6.5 | V |
| VI | Input voltage P00−P07, P10−P17, P20, P21, P30, P31 |
−0.3 to VCC + 0.3 | V | |
| VI | Input voltage RESET | −0.3 to VCC + 0.3 | V | |
| VI | Input voltage CNVSS | −0.3 to VCC + 0.3 | V | |
| VO | Output voltage P00−P07, P10−P17, P20, P21, P30, P31 |
−0.3 to VCC + 0.3 | V | |
| Pd | Power dissipation | Ta = 25 °C | 300 | mW |
| Topr | Operating temperature | −20 to 85 | °C | |
| Tstg | Storage temperature | −40 to 125 | °C |
7549 Features
• The minimum instruction execution time ................... 0.25 s
(at 8 MHz oscillation frequency, double-speed mode)
• Memory size
ROM ................................... 2 K, 4K, 6 K bytes
RAM ........................................... 192/256 bytes
• Programmable I/O ports
I/O port............................................................19
Output port........................................................1
• Key-on wakeup.......................................................................8
• LED direct drive port..............................................................8
• Interrupts ............................................. 13 sources, 13 vectors
• Timers ....................................................................... 8-bit * 2
..................................................................................16-bit * 1
• Output compare ........................................................ 3 channel
• Input capture ............................................................. 1 channel
• Serial interface............................................................ 8-bit * 1
(UART or clock synchronous)
• A/D converter ............................ 10-bit resolution * 8-channel
• Clock generating circuit ..................................... Built-in type
(connect to external ceramic resonator or quartz-crystal oscillator,
32 kHz quartz-crystal oscillation available)
• High-speed on-chip oscillator ............................ Typ. : 4 MHz
• Low-speed on-chip oscillator .......................... Typ. : 250 kHz
• Watchdog timer ...................................................... 16-bit * 1
• Power-on reset circuit.......................................... Built-in type
• Low voltage detection circuit .............................. Built-in type
• Power source voltage
XIN oscillation frequency
(at ceramic resonator, in double-speed mode)
At 8 MHz ........................................ 4.5 to 5.5 V
At 2 MHz ........................................ 2.4 to 5.5 V
At 1 MHz ........................................ 2.2 to 5.5 V
XIN oscillation frequency
(at ceramic resonator, in high-speed mode)
At 8 MHz ........................................ 4.0 to 5.5 V
At 4 MHz ........................................ 2.4 to 5.5 V
At 1 MHz ........................................ 1.8 to 5.5 V
High-speed on-chip oscillator oscillation frequency
At 4 MHz......................................... 4.0 to 5.5 V
Low-speed on-chip oscillator oscillation frequency
At 250 kHz (typ. value at VCC = 5V).... 1.8 to 5.5 V
• Power dissipation ........................................................ 30 mW
• Operating temperature range ............................... -20 to 85°C
(at 8 MHz oscillation frequency, double-speed mode)
• Memory size
ROM ................................... 2 K, 4K, 6 K bytes
RAM ........................................... 192/256 bytes
• Programmable I/O ports
I/O port............................................................19
Output port........................................................1
• Key-on wakeup.......................................................................8
• LED direct drive port..............................................................8
• Interrupts ............................................. 13 sources, 13 vectors
• Timers ....................................................................... 8-bit * 2
..................................................................................16-bit * 1
• Output compare ........................................................ 3 channel
• Input capture ............................................................. 1 channel
• Serial interface............................................................ 8-bit * 1
(UART or clock synchronous)
• A/D converter ............................ 10-bit resolution * 8-channel
• Clock generating circuit ..................................... Built-in type
(connect to external ceramic resonator or quartz-crystal oscillator,
32 kHz quartz-crystal oscillation available)
• High-speed on-chip oscillator ............................ Typ. : 4 MHz
• Low-speed on-chip oscillator .......................... Typ. : 250 kHz
• Watchdog timer ...................................................... 16-bit * 1
• Power-on reset circuit.......................................... Built-in type
• Low voltage detection circuit .............................. Built-in type
• Power source voltage
XIN oscillation frequency
(at ceramic resonator, in double-speed mode)
At 8 MHz ........................................ 4.5 to 5.5 V
At 2 MHz ........................................ 2.4 to 5.5 V
At 1 MHz ........................................ 2.2 to 5.5 V
XIN oscillation frequency
(at ceramic resonator, in high-speed mode)
At 8 MHz ........................................ 4.0 to 5.5 V
At 4 MHz ........................................ 2.4 to 5.5 V
At 1 MHz ........................................ 1.8 to 5.5 V
High-speed on-chip oscillator oscillation frequency
At 4 MHz......................................... 4.0 to 5.5 V
Low-speed on-chip oscillator oscillation frequency
At 250 kHz (typ. value at VCC = 5V).... 1.8 to 5.5 V
• Power dissipation ........................................................ 30 mW
• Operating temperature range ............................... -20 to 85°C
7549 Typical Application
Office automation equipment, factory automation equipment,
home electric appliances, consumer electronics, etc.
home electric appliances, consumer electronics, etc.
7549 Connection Diagram
7540
PDF/DataSheet Download
- Datasheet: 7540
- File Size: 10453 KB
- Manufacturer:
- Click here to Download
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7548 Group
The 7548 Group is the 8-bit microcomputer based on the 740 family core technology.The 7548 Group has an 8-bit timer, 16-bit timer, serial interface,A/D converter, power-on reset circuit and the low voltage detection circuit. Also, the Function set ROM is equ...
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