PIC16F884-E/ML Microchip Technology, PIC16F884-E/ML Datasheet - Page 15

• Manufacturer Part Number: PIC16F884-E/ML
• Description: IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,LLCC,44PIN,PLASTIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F884-E/ML

• Rohs Compliant: YES
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 35
• Program Memory Size: 7KB (4K x 14)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 14x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 44-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3.2.6.3
After receiving this command, the chip will load in a
14-bit “data word” when 16 cycles are applied.
However, the data memory is only 8 bits wide and thus,
only the first 8 bits of data after the Start bit will be
programmed into the data memory. It is still necessary
to cycle the clock the full 16 cycles in order to allow the
internal circuitry to reset properly. The data memory
contains 256 bytes.
FIGURE 3-6:
3.2.6.4
After receiving this command, the chip will transmit
data bits out of the program memory (user or
configuration) currently accessed, starting with the
second rising edge of the clock input. The data pin will
go into Output mode on the second rising clock edge,
and it will revert to Input mode (high-impedance) after
the 16th rising edge.
If the program memory is code-protected (CP = 0), the
data is read as zeros.
FIGURE 3-7:
 2009 Microchip Technology Inc.
ICSPCLK
ICSPCLK
ICSPDAT
ICSPDAT
Load Data for Data Memory
Read Data from Program Memory
1
1
1
1
0
LOAD DATA FOR DATA MEMORY COMMAND
READ DATA FROM PROGRAM MEMORY COMMAND
T
2
SET
2
0
1
1
1
3
3
0
Input
T
HLD
4
4
0
0
1
5
5
x
x
x
x
6
6
T
T
DLY
T
T
DLY
DLY
DLY
2
2
1
1
1
1
strt_bit
strt_bit
2
2
LSb
LSb
T
DLY
3
3
T
3
DLY
3
4
4
Output
PIC16F88X
5
5
MSb on 9th falling edge
15
DS41287D-page 15
15
MSb
16
16
stp_bit
stp_bit
Input