PIC16F1938-I/ML Microchip Technology, PIC16F1938-I/ML Datasheet - Page 413

• Manufacturer Part Number: PIC16F1938-I/ML
• Description: IC MCU 8BIT FLASH 28QFN
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 16Fr

Specifications of PIC16F1938-I/ML

• Core Size: 8-Bit
• Program Memory Size: 28KB (16K x 14)
• Oscillator Type: Internal
• Core Processor: PIC
• Speed: 32MHz
• Connectivity: I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 25
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 11x10b
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• Controller Family/series: PIC16F
• No. Of I/o's: 25
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 1024Byte
• Cpu Speed: 32MHz
• Package: 28QFN EP
• Device Core: PIC
• Family Name: PIC16
• Maximum Speed: 32 MHz
• Operating Supply Voltage: 2.5|3.3|5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 25
• Interface Type: I2C/SPI/USART
• On-chip Adc: 11-chx10-bit
• Number Of Timers: 5
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Timing Diagrams and Specifications
Timing Parameter Symbology........................................... 371
Timing Requirements
© 2009 Microchip Technology Inc.
Bus Collision During a Stop Condition (Case 1) ....... 321
Bus Collision During a Stop Condition (Case 2) ....... 321
Bus Collision During Start Condition (SDA only) ...... 318
Bus Collision for Transmit and Acknowledge............ 317
CLKOUT and I/O....................................................... 374
Clock Synchronization .............................................. 306
Clock Timing ............................................................. 372
Comparator Output ................................................... 145
Enhanced Capture/Compare/PWM (ECCP) ............. 378
Fail-Safe Clock Monitor (FSCM) ............................... 122
First Start Bit Timing ................................................. 310
Full-Bridge PWM Output ........................................... 202
Half-Bridge PWM Output .................................. 200, 208
I
I
I
I
I
INT Pin Interrupt.......................................................... 73
Internal Oscillator Switch Timing............................... 118
LCD Interrupt Timing in Quarter-Duty Cycle Drive.... 270
LCD Sleep Entry/Exit when SLPEN = 1 or CS = 00 . 272
PWM Auto-shutdown ................................................ 207
PWM Direction Change ............................................ 203
PWM Direction Change at Near 100% Duty Cycle ... 204
PWM Output (Active-High)........................................ 198
PWM Output (Active-Low) ........................................ 199
Repeat Start Condition.............................................. 311
Reset, WDT, OST and Power-up Timer ................... 375
Send Break Character Sequence ............................. 235
SPI Master Mode (CKE = 1, SMP = 1) ..................... 383
SPI Mode (Master Mode).......................................... 285
SPI Slave Mode (CKE = 0) ....................................... 384
SPI Slave Mode (CKE = 1) ....................................... 384
Synchronous Reception (Master Mode, SREN) ....... 239
Synchronous Transmission....................................... 237
Synchronous Transmission (Through TXEN) ........... 237
Time-out Sequence
Timer0 and Timer1 External Clock ........................... 377
Timer1 Incrementing Edge........................................ 167
Two Speed Start-up .................................................. 120
Type-A in 1/2 Mux, 1/2 Bias Drive ............................ 259
Type-A in 1/2 Mux, 1/3 Bias Drive ............................ 261
Type-A in 1/3 Mux, 1/2 Bias Drive ............................ 263
Type-A in 1/3 Mux, 1/3 Bias Drive ............................ 265
Type-A in 1/4 Mux, 1/3 Bias Drive ............................ 267
Type-A/Type-B in Static Drive................................... 258
Type-B in 1/2 Mux, 1/2 Bias Drive ............................ 260
Type-B in 1/2 Mux, 1/3 Bias Drive ............................ 262
Type-B in 1/3 Mux, 1/2 Bias Drive ............................ 264
Type-B in 1/3 Mux, 1/3 Bias Drive ............................ 266
Type-B in 1/4 Mux, 1/3 Bias Drive ............................ 268
USART Synchronous Receive (Master/Slave) ......... 382
USART Synchronous Transmission (Master/Slave) . 381
Wake-up from Interrupt ............................................. 336
PLL Clock.................................................................. 373
I
SPI Mode .................................................................. 385
2
2
2
2
2
2
C Bus Data ............................................................. 386
C Bus Start/Stop Bits.............................................. 385
C Master Mode (7 or 10-Bit Transmission) ............ 313
C Master Mode (7-Bit Reception)........................... 315
C Stop Condition Receive or Transmit Mode ......... 316
C Bus Data ..................................................... 387, 386
Firmware Restart .............................................. 207
Case 1 ................................................................ 68
Case 2 ................................................................ 69
Case 3 ................................................................ 69
Preliminary
TMR0 Register.................................................................... 37
TMR1H Register ................................................................. 37
TMR1L Register.................................................................. 37
TMR2 Register.............................................................. 37, 45
TRIS ................................................................................. 352
TRISA Register............................................................. 38, 88
TRISB ................................................................................. 91
TRISB Register............................................................. 38, 93
TRISC ................................................................................. 95
TRISC Register............................................................. 38, 96
TRISD ................................................................................. 98
TRISD Register............................................................. 38, 99
TRISE ............................................................................... 101
TRISE Register........................................................... 38, 103
Two-Speed Clock Start-up Mode...................................... 119
TXCON (Timer2/4/6) Register .......................................... 177
TxCON Register ............................................................... 213
TXREG ............................................................................. 217
TXREG Register ................................................................. 40
TXSTA Register.......................................................... 40, 224
U
USART
V
V
W
Wake-up on Break ............................................................ 233
Wake-up Using Interrupts ................................................. 336
Watchdog Timer (WDT)...................................................... 61
WCOL ....................................................... 309, 312, 314, 316
WCOL Status Flag.................................... 309, 312, 314, 316
WDTCON Register ............................................................. 63
WPUB Register................................................................... 92
WWW Address ................................................................. 414
WWW, On-Line Support ..................................................... 13
REF
PIC16F193X/LF193X
BRGH Bit .................................................................. 227
Synchronous Master Mode
. S
Clock Source .............................................................. 61
Modes......................................................................... 62
Period ......................................................................... 61
Specifications ........................................................... 377
EE
Requirements, Synchronous Receive .............. 382
Requirements, Synchronous Transmission...... 382
Timing Diagram, Synchronous Receive ........... 382
Timing Diagram, Synchronous Transmission... 381
ADC Reference Voltage
DS41364C-page 413