PIC16F874-20I/PT Microchip Technology, PIC16F874-20I/PT Datasheet - Page 2

• Manufacturer Part Number: PIC16F874-20I/PT
• Description: IC MCU FLASH 4KX14 EE 44TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F874-20I/PT

• Core Size: 8-Bit
• Program Memory Size: 7KB (4K x 14)
• Core Processor: PIC
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 33
• Program Memory Type: FLASH
• Eeprom Size: 128 x 8
• Ram Size: 192 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Controller Family/series: PIC16F
• No. Of I/o's: 33
• Eeprom Memory Size: 128Byte
• Ram Memory Size: 192Byte
• Cpu Speed: 20MHz
• No. Of Timers: 3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT44PT3 - SOCKET TRAN ICE 44MQFP/TQFPAC164305 - MODULE SKT FOR PM3 44TQFP444-1001 - DEMO BOARD FOR PICMICRO MCUAC164020 - MODULE SKT PROMATEII 44TQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

PIC16F87X
2.
3.
4.
5.
TABLE 1:
DS80053B-page 2
Param
D001
A06
No.
Module: MSSP - SPI mode
The SDI pin is controlled by the module and not by
the state of the TRIS bit. This means that the SDI
pin cannot be an output when the MSSP module is
in SPI mode.
Work Around
None for current silicon revision
(fixed in silicon revision B4)
Module: Electrical Specifications
The Supply Voltage specification has not yet met
the design target (Data Sheet specification). The
specification for these devices is shown in Table 1.
Module: A/D Specifications
The Offset Error specification has not yet met the
design target (Data Sheet specification). The
specification for these devices is shown in Table 1.
Module: TMR1
When operating in external clock mode (TMR1CS
is set), reading either of the timer 1 registers
(TMR1H or TMR1L) may cause the timer not to
increment as expected. This occurs for both syn-
chronous and asynchronous inputs.
E
Sym.
V
OFF
DD
DC SPECIFICATION CHANGES FROM DATA SHEET
Characteristic
Supply Voltage
Offset Error
Min
2.5
Tested Specification
—
The scenarios which display this are:
a) When a read operation of the TMR1H regis-
b) When a read operation of the TMR1L regis-
Work Around
Do not read either the TMR1H or the TMR1L reg-
isters when operating in external clock mode
(TMR1CS is set). If the application needs to read
the 16-bit counter, evaluate if this function can be
moved to the TMR0 or one of the other timer
resources on the device.
Typ
—
—
ter occurs, the TMR1L register may not
increment.
ter occurs, the TMR1H register may not
increment. This improper operation is only
an issue when the TMR1L register incre-
ments from FFh to 00h (FFh
the read of the TMR1L register.
< ± 2
Max
5.5
Min
2.0
—
1999 Microchip Technology Inc.
Specification
Data Sheet
Typ
—
—
< ± 1
Max
00H) during
5.5
Units
LSb
V