MC68HC12 MOTOROLA [Motorola, Inc], MC68HC12 Datasheet - Page 207

• Manufacturer Part Number: MC68HC12
• Description: The MC68HC912DT128A microcontroller unit (MCU) is a 16-bit device composed of standard on-chip peripherals including a 16-bit central processing unit
• Manufacturer: MOTOROLA [Motorola, Inc]

MC68HC912DT128A — Rev 4.0
MOTOROLA
Table 13-1. MC68HC912Dx128C EXTAL–XTAL Capacitor Values vs. Maximum ESR, Shunt
Capacitance
(VDDPLL=VDD)
Capacitance
(VDDPLL=VDD)
C
C
EXTAL-XTAL
EXTAL-XTAL
Shunt
Shunt
(pF)
(pF)
Capacitance
(VDDPLL=VDD)
Capacitance
C
(VDDPLL=0)
EXTAL-XTAL
Shunt
Shunt
(pF)
(pF)
(pF)
(pF)
10
10
3
5
7
3
5
7
Maximum ESR vs. EXTAL–XTAL capacitor value, 1MHz resonators
Maximum ESR vs. EXTAL–XTAL capacitor value, 2MHz resonators
100pF
100pF
1570
1460
1350
1210
360
340
320
290
(pF)
Maximum ESR vs. EXTAL–XTAL capacitor value, 4MHz resonators
10
10
3
5
7
3
5
7
82pF
2080
1890
1730
1520
82pF
480
450
410
370
Capacitance, and VDDPLL setting
47pF
210
190
170
145
250
225
200
175
68pF
2620
2340
2100
1600
68pF
620
570
520
450
39pF
255
225
200
170
300
265
235
200
56pF
2700
2010
1550
1100
Oscillator
56pF
780
700
630
550
33pF
290
254
227
190
350
305
265
220
MC68HC912Dx128C Colpitts Oscillator Specification
1870
1370
1050
47pF
47pF
740
940
830
740
620
27pF
335
290
250
205
400
340
295
240
1140
39pF
1100
39pF
830
630
440
950
830
600
22pF
370
310
270
205
440
345
270
195
33pF
33pF
1080
630
460
350
240
800
620
440
18pF
340
255
200
140
325
245
190
135
27pF
27pF
170
120
730
530
410
290
90
60
13pF
175
130
100
165
120
70
90
65
22pF
22pF
440
320
250
170
Technical Data
Oscillator
10pF
18pF
18pF
240
170
130
80
60
45
25
75
55
40
20
90
207