PIC18F442T-I/PT Microchip Technology, PIC18F442T-I/PT Datasheet - Page 13

• Manufacturer Part Number: PIC18F442T-I/PT
• Description: IC MCU FLASH 8KX16 EE A/D 44TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F442T-I/PT

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 34
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

FIGURE 3-5:
FIGURE 3-6:
 2010 Microchip Technology Inc.
SCLK
SDATA
1
1
4-bit Command
2
1
3
1
PROGRAM CODE MEMORY FLOW
TABLE WRITE AND START PROGRAMMING INSTRUCTION TIMING (1111)
4
1
P5
LoopCount =
LoopCount + 1
1
n
N = 1
2
n
3
n
16-bit Data Payload
4
n
N = N + 1
5
n
6
n
SDATA = Input
15 16
n
No
n
No
Addr = Panel Base Address
P5A
Panel Base Address =
Start Write Sequence
Delay P9+P10 Time
Multi-Panel Writes
+ (8 x LoopCount)
for Write to Occur
4-bit Command
to Panel N Write
Buffer at <Addr>
1
High Until Done
(N – 1) x 2000h
and Hold SCLK
0
Load 8 Bytes
panel buffers
Device for
Configure
locations
written?
2
0
done?
Start
Done
All
All
3
Yes
Yes
0
N = 1
LoopCount = 0
PIC18FXX2/XX8
0
Programming Time
P9
4
DS39576C-page 13
P10
1
Data Payload
0
16-bit
2
0
3
0