P87LPC764 NXP Semiconductors, P87LPC764 Datasheet - Page 50

• Manufacturer Part Number: P87LPC764
• Description: The P87LPC764 is a 20-pin single-chip microcontroller designed forlow pin count applications demanding high-integration, low costsolutions over a wide range of performance requirements
• Manufacturer: NXP Semiconductors

1. Applies only to an external clock source, not when a crystal is connected to the X1 and X2 pins.
2. Tested at V
3. These parameters are characterized but not tested.
4. +/– 2.5% accuracy enables serial communication over the UART with the internal Oscillator.
5. Min frequency at hot temperature.
Philips Semiconductors
AC ELECTRICAL CHARACTERISTICS (FOR P87LPC764BD/01, BDH/01)
T
NOTES:
2003 Sep 03
amb
External Clock
Internal RC Oscillator
Shift Register
SYMBOL
SYMBOL
Low power, low price, low pin count (20 pin)
microcontroller with 4 kbyte OTP
f
f
f
t
t
t
t
osc(cal)
t
t
t
t
osc(tol)
osc(tol)
t
CHCX
CHCX
QVXH
XHQX
XHDV
XHDX
CLCX
CLCX
XLXL
f
f
= 0 C to +70 C, V
osc
osc
t
C
DD
FIGURE
FIGURE
= 5.0 V and room temperature.
39
39
39
39
39
39
39
38
38
38
38
38
DD
Oscillator frequency (V
Oscillator frequency (V
Clock period and CPU timing cycle
Clock low-time
Clock high-time
On-chip RC oscillator calibration
On-chip RC oscillator, 0 C to +50 C
On-chip RC oscillator, 0 C to +70 C
Serial port clock cycle time
Output data setup to clock rising edge
Output data hold after clock rising edge
Input data setup to clock rising edge
Input data hold after clock rising edge
= 2.7 V to 6.0 V unless otherwise specified; V
1
1
PARAMETER
PARAMETER
DD
DD
= 4.0 V to 6.0 V)
= 2.7 V to 6.0 V)
2
3,4
3
tol.
tol.
49
SS
= 0 V
f
f
f
1,2,3
osc(RC)
osc(RC)
osc(RC)
f
f
f
f
osc
osc
osc
osc
= 20 MHz
= 10 MHz
= 20 MHz
= 10 MHz
= 6 MHz
= 6 MHz
= 6 MHz
5t
1t
C
1/f
–2.5
C
MIN
–5
6t
20
40
20
40
–1
– 133
0
0
–
0
– 80
osc
C
5
LIMITS
5t
P87LPC764
C
MAX
+2.5
+2.5
20
10
+1
– 133
–
–
–
–
–
–
–
–
–
Product data
UNIT
UNIT
MHz
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
%
%
%