PIC16C642-20E/SO Microchip Technology, PIC16C642-20E/SO Datasheet - Page 98

• Manufacturer Part Number: PIC16C642-20E/SO
• Description: IC MCU OTP 4KX14 COMP 28SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16C642-20E/SO

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: Brown-out Detect/Reset, LED, POR, WDT
• Number Of I /o: 22
• Program Memory Size: 7KB (4K x 14)
• Program Memory Type: OTP
• Ram Size: 176 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 6 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-SOIC (7.5mm Width)
• Processor Series: PIC16C
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 176 B
• Interface Type: RS- 232
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 33
• Number Of Timers: 8
• Operating Supply Voltage: 3 V to 6 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: ICE2000, DM163022
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Connectivity: -
• Lead Free Status / Rohs Status: Details

PIC16C64X & PIC16C66X
12.5
FIGURE 12-2: EXTERNAL CLOCK TIMING
TABLE 12-4:
DS30559A-page 98
Note 1: Instruction cycle period (T
Param
No.
3*
4*
1
2
* These parameters are characterized but not tested.
† Data in “Typ” column is at 5.0V, 25 C unless otherwise stated. These parameters are for design guidance only
CLKOUT
OSC1
and are not tested.
Timing Diagrams and Specifications
based on characterization data for that particular oscillator type under standard operating conditions with
the device executing code. Exceeding these specified limits may result in an unstable oscillator operation
and/or higher than expected current consumption. All devices are tested to operate at “min.” values with an
external clock applied to the OSC1 pin.
When an external clock input is used, the “Max.” cycle time limit is “DC” (no clock) for all devices.
Fosc
Tosc
T
TosL,
TosH
TosR,
TosF
Sym
CY
EXTERNAL CLOCK TIMING REQUIREMENTS
External CLKIN Frequency
Oscillator Frequency
External CLKIN Period
Oscillator Period
Instruction Cycle Time
External Clock in (OSC1)
High or Low Time
External Clock in (OSC1)
Rise or Fall Time
Q4
Characteristic
CY
) equals four times the input oscillator time-base period. All specified values are
Q1
(1)
1
(1)
(1)
(1)
(1)
Preliminary
Q2
Min
250
250
250
200
100
DC
DC
DC
DC
0.1
2.5
50
50
15
—
—
—
4
5
5
5
2
Typ†
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
–
3
Q3
10,000 ns
Max
3
200
200
250
DC
20
20
25
50
15
—
—
—
—
—
—
—
—
4
4
4
MHz
MHz
kHz
MHz
MHz
MHz
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Units
s
s
s
Q4
4
XT and RC osc mode,
V
HS osc mode
LP osc mode
RC osc mode, V
XT osc mode
HS osc mode
LP osc mode
XT and RC osc mode
HS osc mode
LP osc mode
RC osc mode
XT osc mode
HS osc mode
LP osc mode
T
XT osc mode
LP osc mode
HS osc mode
XT osc mode
LP osc mode
HS osc mode
CY
DD
1996 Microchip Technology Inc.
4
= F
= 5.0V
OSC
Conditions
Q1
/4
DD
= 5.0V