PIC16C74B

Features:

Microcontroller Core Features:
• High-performance RISC CPU
• Only 35 single word instructions to learn
• All single cycle instructions except for program branches which are two cycle
• Operating speed: DC - 20 MHz clock input DC - 200 ns instruction cycle
• 4K x 14 words of Program Memory,192 x 8 bytes of Data Memory (RAM)
• Interrupt capability (up to 12 internal/external interrupt sources)
• Eight level deep hardware stack
• Direct, indirect, and relative addressing modes
• Power-on Reset (POR)
• Power-up Timer (PWRT) and Oscillator Start-up Timer (OST)
• Watchdog Timer (WDT) with its own on-chip RC oscillator for reliable operation
• Programmable code-protection
• Power saving SLEEP mode
• Selectable oscillator options
• Low-power, high-speed CMOS EPROM technology
• Fully static design
• In-Circuit Serial Programming™ (ICSP)
• Wide operating voltage range: 2.5V to 5.5V
• High Sink/Source Current 25/25 mA
• Commercial, Industrial and Extended temperature ranges
• Low-power consumption:
- < 2 mA @ 5V, 4 MHz
- 22.5A typical @ 3V, 32 kHz
- < 1A typical standby current
Peripheral Features:
• Timer0: 8-bit timer/counter with 8-bit prescaler
• Timer1: 16-bit timer/counter with prescaler,can be incremented during sleep via external crystal/clock
• Timer2: 8-bit timer/counter with 8-bit period register, prescaler and postscaler
• Two Capture, Compare, PWM modules
• Capture is 16-bit, max. resolution is 12.5 ns,Compare is 16-bit, max. resolution is 200 ns,PWM maximum resolution is 10-bit
• 8-bit multi-channel Analog-to-Digital converter
• Synchronous Serial Port (SSP) with Enhanced SPIä and I²C^TM
• Universal Synchronous Asynchronous Receiver Transmitter (USART/SCI)
• Parallel Slave Port (PSP) 8-bits wide, with external RD, WR and CS controls
• Brown-out detection circuitry for Brown-out Reset (BOR)

Pinout

Specifications

Parameter Name	Value
Program Memory Type	OTP
Program Memory (KB)	7
CPU Speed (MIPS)	5
RAM Bytes	192
Digital Communication Peripherals	1-A/E/USART, 1-SSP(SPI/I2C)
Capture/Compare/PWM Peripherals	2 CCP
Timers	2 x 8-bit, 1 x 16-bit
ADC	8 ch, 8-bit
Temperature Range (C)	-40 to 85
Operating Voltage Range (V)	2.5 to 5.5
Pin Count	40

Ambient temperature under bias................................. .-55°C to +125°C
Storage temperature .................................................. -65°C to +150°C
Voltage on any pin with respect to V_SS (except V_DD, MCLR, and RA4)..... -0.3V to (V_DD + 0.3V)
Voltage on V_DD with respect to V_SS .................................. -0.3V to +7.5V
Voltage onMCLR with respect to V_SS (Note 2)................... 0V to +13.25V
Voltage on RA4 with respect to Vss ...................................... 0V to +8.5V
Total power dissipation (Note 1)......................................................1.0W
Maximum current out of V_SS pin ...................................................300 mA
Maximum current into V_DD pin ......................................................250 mA
Input clamp current, I_IK (V_I < 0 or V_I > V_DD)...............................±20 mA
Output clamp current, I_OK (V_O < 0 or V_O > V_DD) ........................±20 mA
Maximum output current sunk by any I/O pin...................................25 mA
Maximum output current sourced by any I/O pin .............................25 mA
Maximum current sunk by PORTA, PORTB, and PORTE (Note 3) (combined)........200 mA
Maximum current sourced by PORTA, PORTB, and PORTE (Note 3) (combined) ...200 mA
Maximum current sunk by PORTC and PORTD (Note 3) (combined) .....................200 mA
Maximum current sourced by PORTC and PORTD (Note 3) (combined) ................200 mA
Note 1: Power dissipation is calculated as follows: Pdis = V_DD x {I_DD - I_OH} + {(V_DD-V_OH) x I_OH} + (V_Ol x I_OL)

Note 2: Voltage spikes below V_SS at the MCLR/V_PP pin, inducing currents greater than 80 mA, may cause latch-up.Thus, a series resistor of 50-100W should be used when applying a "low" level to the MCLR/V_PP pin rather than pulling this pin directly to V_SS.

Note 3: PORTD and PORTE not available on the PIC16C63A/73B.

† NOTICE: Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those
indicated in the operation listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability.

Description

This PIC16C74B powerful (200 nanosecond instruction execution) yet easy-to-program (only 35 single word instructions) CMOS OTP-based 8-bit microcontroller packs Microchip's powerful PIC? architecture into an 40- or 44-pin package and is upwards compatible with the PIC16C5X and PIC12CXXX devices. The PIC16C74B features 8 channels of 8-bit Analog-to-Digital (A/D) converter with 2 additional timers, 2 capture/compare/PWM functions and the synchronous serial port can be configured as either 3-wire Serial Peripheral Interface (SPI?) or the 2-wire Inter-Integrated Circuit (I2C?) bus and a Universal Asynchronous Receiver Transmitter (USART). All of these features make it ideal for more advanced level A/D applications in automotive, industrial, appliances and consumer applications.