EM78451AP EMC [ELAN Microelectronics Corp], EM78451AP Datasheet - Page 43
EM78451AP
Manufacturer Part Number
EM78451AP
Description
8-Bit Microcontroller
Manufacturer
EMC [ELAN Microelectronics Corp]
Datasheet
1.EM78451AP.pdf
(54 pages)
- Current page: 43 of 54
- Download datasheet (374Kb)
Product Specification (V1.2) 05.27.2004
(This specification is subject to change without further notice)
4.9.2 Crystal Oscillator/Ceramic Resonators (XTAL)
EM78451 can be driven by an external clock signal through the OSCI pin as shown in
Fig 18. In most applications, pin OSCI and pin OSCO is connected with a crystal or
ceramic resonator to generate oscillation. Fig 19 depicts such circuit. Table 10
provides the recommends values of C1 and C2. Since each resonator has its own
attribute, user should refer to its specification for appropriate values of C1 and C2. RS,
a serial resistor may be necessary for AT strip cut crystal or low frequency mode.
EM 78451
Fig. 18 Circuit for External Clock Input
EM 78451
Fig. 19 Circuit for Crystal/Resonator
OSCO
OSCI
OSCO
OSCI
XTAL
RS
X: Don’t care
NOTE
C1
C2
Ext. Clock
8-Bit Microcontroller
EM78451
• 39
Related parts for EM78451AP
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
1 Megabit (128K x 8) Serial Flash Memory
Manufacturer:
EMC [ELAN Microelectronics Corp]
Datasheet:
Part Number:
Description:
512 K (64K x 8) Bits Serial Flash Memory
Manufacturer:
EMC [ELAN Microelectronics Corp]
Datasheet:
Part Number:
Description:
TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
Manufacturer:
EMC [ELAN Microelectronics Corp]
Datasheet:
Part Number:
Description:
TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
Manufacturer:
EMC [ELAN Microelectronics Corp]
Datasheet:
Part Number:
Description:
TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR
Manufacturer:
EMC [ELAN Microelectronics Corp]
Datasheet:
Part Number:
Description:
TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE AND DUAL-TONE MELODY GENERATOR
Manufacturer:
EMC [ELAN Microelectronics Corp]
Datasheet:
Part Number:
Description:
TONE/PULSE DIALER WITH LCD INTERFACE AND I.P.P. DETECT FUNCTION
Manufacturer:
EMC [ELAN Microelectronics Corp]
Datasheet:
Part Number:
Description:
TONE/PULSE SWITCHABLE DIALER
Manufacturer:
EMC [ELAN Microelectronics Corp]
Datasheet:
Part Number:
Description:
TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
Manufacturer:
EMC [ELAN Microelectronics Corp]
Datasheet:
Part Number:
Description:
13 MEMORY TONE/PULSE DIALER WITH HF, HD, REDIAL AND VOLUME CONTROL FUNCTION
Manufacturer:
EMC [ELAN Microelectronics Corp]
Datasheet:
Part Number:
Description:
TONE/PULSE SWITCHABLE DIALER
Manufacturer:
EMC [ELAN Microelectronics Corp]
Datasheet:
Part Number:
Description:
8-Bit Microcontroller with MASK ROM
Manufacturer:
EMC [ELAN Microelectronics Corp]
Datasheet:
Part Number:
Description:
8-Bit Microcontroller with OTP ROM
Manufacturer:
EMC [ELAN Microelectronics Corp]
Datasheet:
Part Number:
Description:
PS/2 MOUSE ENCODER
Manufacturer:
EMC [ELAN Microelectronics Corp]
Datasheet:
Part Number:
Description:
8-BIT Microcontroller
Manufacturer:
EMC [ELAN Microelectronics Corp]
Datasheet: