PIC16F1937-E/PT Microchip Technology, PIC16F1937-E/PT Datasheet - Page 4

• Manufacturer Part Number: PIC16F1937-E/PT
• Description: 14KB Flash, 512B RAM, 256B EEPROM, LCD, 1.8-5.5V 44 TQFP 10x10x1mm TRAY
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 16Fr

Specifications of PIC16F1937-E/PT

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 32MHz
• Connectivity: I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 36
• Program Memory Size: 14KB (8K x 14)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 14x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 44-TQFP, 44-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

FIGURE 1:
DS41375A-page 4
0x0F
0x0E
0x0D
0x0C
0x0B
0x0A
0x09
0x08
0x07
0x06
0x05
0x04
0x03
0x02
0x01
0x00
0x1F
0x0F
0x0E
0x0D
0x0C
0x0B
0x0A
0x09
0x08
0x07
0x06
0x05
0x04
0x03
0x02
0x01
0x00
STACK OPERATION
Return Address
0x0000
STKPTR 0X1F
STKPTR 0X1F
STKPTR 0X00
INITIAL STACK CONFIGURATION
After Reset, the stack is empty. The
empty stack is initialized so the Stack
Pointer is pointing at 0x1F. If the Stack
Overflow Reset if enabled, the TOSH/
TOSL registers will return ‘0’.
If the Stack Overflow Reset is disabled,
the TOSH/TOSL registers will return the
contents of Stack Address 0x0F.
This figure shows the stack
configuration after the first call or
a single interrupt. If a return
instruction is executed, the return
address will be placed in the
Program Counter and the Stack
Pointer
empty state (0x1F).
decremented
Stack Reset Disabled (STVREN = 0)
Stack Reset Enabled (STVREN = 1)
© 2009 Microchip Technology Inc.
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