PIC16F77-I/P Microchip Technology, PIC16F77-I/P Datasheet - Page 615

IC MCU FLASH 8KX14 A/D 40DIP

PIC16F77-I/P

Manufacturer Part Number
PIC16F77-I/P
Description
IC MCU FLASH 8KX14 A/D 40DIP
Manufacturer
Microchip Technology
Series
PIC® 16Fr

Specifications of PIC16F77-I/P

Program Memory Type
FLASH
Program Memory Size
14KB (8K x 14)
Package / Case
40-DIP (0.600", 15.24mm)
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
33
Ram Size
368 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 8x8b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Processor Series
PIC16F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
368 B
Interface Type
I2C/SPI/USART
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
33
Number Of Timers
3
Operating Supply Voltage
2 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
3rd Party Development Tools
52715-96, 52716-328, 52717-734
Development Tools By Supplier
ICE2000, DM163022
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 8-bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
444-1001 - DEMO BOARD FOR PICMICRO MCU
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant

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31.3.1
1997 Microchip Technology Inc.
I
PD
vs. V
DD
I
referred to as power-down current. These tests are taken with all I/O as inputs, either pulled high
or low. That is, there are no floating inputs, nor are any pins driving an output (with a load).
The characterization shows graphs for both the Watchdog Timer (WDT) disabled and enabled.
This is required since the WDT requires an on-chip RC oscillator which consumes additional cur-
rent.
Since the device may have certain features and modules that can operate while the device is in
sleep mode. Some of these modules are:
• Watchdog Timer (WDT)
• Brown-out Reset (BOR) circuitry
• Timer1
• Analog to Digital converter
• LCD module
• Comparators
• Voltage Reference
If these features are operating while the device is in sleep mode, a higher current will be con-
sumed. When all features are disabled, the device will consume the lowest possible current (the
leakage current). If more then one feature is enabled then the expected current can easily be cal-
culated as the base current (everything disabled and in sleep mode) plus all delta currents.
Example 31-1
WDT and Timer1 oscillator enabled.
Example 31-1:I
PD
Base Current
WDT Delta Current
Timer1 Delta Current
Total Sleep Current
is the current (I) that the device consumes when the device is in sleep mode (power-down),
Section 31. Device Characteristics
shows an example of calculating the typical currents for a device at 5V, with the
PD
Calculations with WDT and TIMER1 Oscillator Enabled (@ 5V)
14 nA
14 A
22 A
36 A
; Device leakage current
; 14 A - 14 nA = 14 A
; 22 A - 14 nA = 22 A
;
DS31031A-page 31-3
31

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