PIC16F870-I/SS Microchip Technology, PIC16F870-I/SS Datasheet - Page 19
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PIC16F870-I/SS
Manufacturer Part Number
PIC16F870-I/SS
Description
IC MCU FLASH 2KX14 EE 28SSOP
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F688T-ISL.pdf
(688 pages)
3.PIC16F870-ISO.pdf
(172 pages)
4.PIC16F870-ISO.pdf
(6 pages)
Specifications of PIC16F870-I/SS
Core Size
8-Bit
Program Memory Size
3.5KB (2K x 14)
Core Processor
PIC
Speed
20MHz
Connectivity
UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
22
Program Memory Type
FLASH
Eeprom Size
64 x 8
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 5x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
28-SSOP
Controller Family/series
PIC16F
No. Of I/o's
22
Eeprom Memory Size
64Byte
Ram Memory Size
128Byte
Cpu Speed
20MHz
No. Of Timers
3
Processor Series
PIC16F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
128 B
Interface Type
USART
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
22
Number Of Timers
8
Operating Supply Voltage
2 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52715-96, 52716-328, 52717-734
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, DM163022, DV164120
Minimum Operating Temperature
- 40 C
On-chip Adc
28 bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
I3-DB16F871 - BOARD DAUGHTER ICEPIC3AC164307 - MODULE SKT FOR PM3 28SSOPAC164020 - MODULE SKT PROMATEII 44TQFPXLT28SS-1 - SOCKET TRANSITION ICE 28SSOP
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC16F870-I/SS
Manufacturer:
EPCOS
Quantity:
1 000
Part Number:
PIC16F870-I/SS
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
2.2.2.2
The OPTION_REG register is a readable and writable
register, which contains various control bits to configure
the TMR0 prescaler/WDT postscaler (single assign-
able register known also as the prescaler), the External
INT interrupt, TMR0 and the weak pull-ups on PORTB.
REGISTER 2-2:
2003 Microchip Technology Inc.
Note:
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2-0
To achieve a 1:1 prescaler assignment for
the TMR0 register, assign the prescaler to
the Watchdog Timer.
OPTION_REG Register
OPTION_REG REGISTER (ADDRESS: 81h,181h)
bit 7
RBPU: PORTB Pull-up Enable bit
1 = PORTB pull-ups are disabled
0 = PORTB pull-ups are enabled by individual port latch values
INTEDG: Interrupt Edge Select bit
1 = Interrupt on rising edge of RB0/INT pin
0 = Interrupt on falling edge of RB0/INT pin
T0CS: TMR0 Clock Source Select bit
1 = Transition on RA4/T0CKI pin
0 = Internal instruction cycle clock (CLKO)
T0SE: TMR0 Source Edge Select bit
1 = Increment on high-to-low transition on RA4/T0CKI pin
0 = Increment on low-to-high transition on RA4/T0CKI pin
PSA: Prescaler Assignment bit
1 = Prescaler is assigned to the WDT
0 = Prescaler is assigned to the Timer0 module
PS2:PS0: Prescaler Rate Select bits
Legend:
R = Readable bit
- n = Value at POR
R/W-1
RBPU
Bit Value
INTEDG
000
001
010
011
100
101
110
111
R/W-1
TMR0 Rate
1 : 2
1 : 4
1 : 8
1 : 16
1 : 32
1 : 64
1 : 128
1 : 256
R/W-1
T0CS
W = Writable bit
‘1’ = Bit is set
WDT Rate
1 : 1
1 : 2
1 : 4
1 : 8
1 : 16
1 : 32
1 : 64
1 : 128
R/W-1
T0SE
R/W-1
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
PSA
PIC16F870/871
R/W-1
PS2
x = Bit is unknown
R/W-1
PS1
DS30569B-page 17
R/W-1
PS0
bit 0