7549 Selling Leads, Price trend, 7549 DataSheet download, circuit diagram from SeekIC.com

Features: • The minimum instruction execution time ................... 0.25 s(at 8 MHz oscillation frequency, double-speed mode)• Memory sizeROM ................................... 2 K, 4K, 6 K bytesRAM ........................................... 192/256 bytes• Programmable I/O p...

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SeekIC No. : 004252111 Detail

7549: Features: • The minimum instruction execution time ................... 0.25 s(at 8 MHz oscillation frequency, double-speed mode)• Memory sizeROM ................................... 2 K, ...

7549 Data Sheet

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Part Number:: 7549
Supply Ability:: 5000

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1~5000

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Negotiable

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Product Details

Description

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

Application

Office automation equipment, factory automation equipment,
home electric appliances, consumer electronics, etc.

Pinout

Connection Diagram

Specifications

Symbol	Parameter	Conditions	Ratings	Unit
V_CC	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
V_I	Input voltage P00−P07, P10−P17, P20, P21, P30, P31		−0.3 to V_CC + 0.3	V
V_I	Input voltage RESET		−0.3 to V_CC + 0.3	V
V_I	Input voltage CNVSS		−0.3 to V_CC + 0.3	V
V_O	Output voltage P00−P07, P10−P17, P20, P21, P30, P31		−0.3 to V_CC+ 0.3	V
P_d	Power dissipation	T_a= 25 °C	300	mW
T_opr	Operating temperature		−20 to 85	°C
T_stg	Storage temperature		−40 to 125	°C

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

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