PIC16LF1903-E/SS Microchip Technology, PIC16LF1903-E/SS Datasheet - Page 179

• Manufacturer Part Number: PIC16LF1903-E/SS
• Description: 7KB Flash, 256B RAM, LCD, 11x10b ADC, NanoWatt XLP 28 SSOP .209in TUBE
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 16Fr

Specifications of PIC16LF1903-E/SS

• Processor Series: PIC16LF190x
• Core: PIC
• Data Bus Width: 8 bit
• Program Memory Type: Flash
• Program Memory Size: 4 KB
• Data Ram Size: 256 B
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 25
• Number Of Timers: 2
• Operating Supply Voltage: 1.8 V to 3.6 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Package / Case: SSOP-28
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: -
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 25
• Eeprom Size: -
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Data Converters: A/D 11x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Lead Free Status / Rohs Status: Details

19.0
ICSP™ programming allows customers to manufacture
circuit boards with unprogrammed devices. Programming
can be done after the assembly process allowing the
device to be programmed with the most recent firmware
or a custom firmware. Five pins are needed for ICSP™
programming:
• ICSPCLK
• ICSPDAT
• MCLR/V
• V
• V
In Program/Verify mode the Program Memory, User
IDs and the Configuration Words are programmed
through serial communications. The ICSPDAT pin is a
bidirectional I/O used for transferring the serial data
and the ICSPCLK pin is the clock input. For more
information
“PIC16F193X/LF193X/PIC16F194X/LF194X/PIC16LF
190X
(DS41397).
19.1
The device is placed into High-Voltage Programming
Entry mode by holding the ICSPCLK and ICSPDAT
pins low then raising the voltage on MCLR/V
FIGURE 19-1:
 2011 Microchip Technology Inc.
Note:
DD
SS
IN-CIRCUIT SERIAL
PROGRAMMING™ (ICSP™)
High-Voltage Programming Entry
Mode
Memory
PP
The MPLAB
voltage greater than the maximum V
specification of the PIC16LF1902/3.
To MPLAB
on
ICSP_CLOCK
RJ11-6PIN
ICSP_DATA
Programming
VPP LIMITER EXAMPLE CIRCUIT
ICSP™
®
V
V
V
®
NC
PP
DD
SS
ICD 2
ICD 2 produces a V
1
2
3
4
5
6
refer
Specification”
PP
270 Ohm
to
to V
R1
10k 1%
IHH
Preliminary
2
3
6
7
PP
PP
the
R2
LM431BCMX
.
A
A
A
A
V
U1
REF
8
NC
NC
24k 1%
K
R3
1
4
5
Some programmers produce V
(9.0V), an external circuit is required to limit the V
voltage. See
Figure 19-1
PIC16LF1902/3
To Target Board
6
5
4
3
2
1
RJ11-6PIN
for example circuit.
PP
DS41455B-page 179
greater than V
IHH
PP