PIC16F1939-I/PT Microchip Technology Inc., PIC16F1939-I/PT Datasheet - Page 205

• Manufacturer Part Number: PIC16F1939-I/PT
• Description: 44 TQFP 10x10x1mm TRAY, 28KB Flash, 1KB RAM, 256B EEPROM, LCD, 1.8-5.5V
• Manufacturer: Microchip Technology Inc.

Specifications of PIC16F1939-I/PT

• A/d Inputs: 14-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 8 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 36
• Interface: I2C/SPI/UART/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 40-pin TQFP
• Programmable Memory: 28K Bytes
• Ram Size: 1K Bytes
• Speed: 32 MHz
• Temperature Range: –40 to 125 °C
• Timers: 4-8-bit, 1-16-bit
• Voltage, Range: 1.8-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

21.0
There are up to three identical Timer2-type modules
available. To maintain pre-existing naming conventions,
the Timers are called Timer2, Timer4 and Timer6 (also
Timer2/4/6).
The Timer2/4/6 modules incorporate the following
features:
• 8-bit Timer and Period registers (TMRx and PRx,
• Readable and writable (both registers)
• Software programmable prescaler (1:1, 1:4, 1:16,
• Software programmable postscaler (1:1 to 1:16)
• Interrupt on TMRx match with PRx, respectively
• Optional use as the shift clock for the MSSPx
See Figure 21-1 for a block diagram of Timer2/4/6.
FIGURE 21-1:
 2009 Microchip Technology Inc.
Note:
respectively)
and 1:64)
modules (Timer2 only)
F
TIMER2/4/6 MODULES
OSC
The ‘x’ variable used in this section is used
to designate Timer2, Timer4, or Timer6.
For example, TxCON references T2CON,
T4CON, or T6CON. PRx references PR2,
PR4, or PR6.
/4
TIMER2/4/6 BLOCK DIAGRAM
1:1, 1:4, 1:16, 1:64
TxCKPS<1:0>
Prescaler
2
Comparator
Preliminary
TMRx
PRx
EQ
Reset
PIC16F193X/LF193X
TxOUTPS<3:0>
Postscaler
1:1 to 1:16
Output
TMRx
4
Sets Flag
bit TMRxIF
DS41364D-page 205