CMA8864-04 Datasheet, PDF (6/9 Pages) List of Unclassifed Manufacturers – I2C, Mixed Voltage clock Synthesizer with Buffer for PENTIUMTM & II CPU/PCI system

Ver. 1.2
6F, No. 100, Sec. 4, Civil Boulevard, Taipei, Taiwan
TEL: [phone] FAX: [phone]
WWW : http://www.cmedia.com.tw
BUFFER SPECIFICATION
Buffer Name
CPU
IOAPIC
24/48MHz, REF1, 2
,REF0, SDRAM
PCI
Vcc Range (V)
2.375 - 2.9
2.375 - 2.9
3.315 - 3.465
3.315 - 3.465
3.315 - 3.465
Impedance (£ [)
15 - 45
10 - 30
20 -60
10 - 24
12 - 55
Buffer Type
1
2
3
4
5
Type 1 : CPU clock buffer Operating Characteristics
Symbol Parameter
Condition Min. Max.
Iohmin Pull-up Current
Vout=1.0V
-27
Iohmax Pull-up Current
Vout=2.6V
-27
Iolmin Pull-down Current
Vout=1.2V
27
Iolmax Pull-down Current
Vout=0.3V
27
trh
2.5V Type 1 output 2.5V @2.0V-0.4V 1/1
4/1
Rise Edge Rate
10pF load
tfh
2.5V Type 1 output 2.5V @2.0V-0.4V 1/1
4/1
Fall Edge Rate
20pF load
Units
mA
mA
mA
mA
V/ns
V/ns
Type 2 : IOAPIC (2.5V) clock buffer Operating Characteristics
Symbol Parameter
Condition Min. Max. Units
Iohmin Pull-up Current
Vout=1.4V
-36
mA
Iohmax Pull-up Current
Vout=2.7V
Iolmin Pull-down Current
Vout=1.0V
36
Iolmax Pull-down Current
Vout=0.2V
trh
2.5V Type 2 output 2.5V @0.4V-2.0V 1/1
Rise Edge Rate
10pF load
tfh
2.5V Type 2 output 2.5V @2.0V-0.4V 1/1
Fall Edge Rate
20pF load
-29
mA
mA
28
mA
4/1
V/ns
4/1
V/ns
Type 3 : FD, USB, REF1, 2 (3.3V) clock buffer Operating Characteristics
Symbol Parameter
Condition Min. Max. Units
Iohmin Pull-up Current
Vout=1.0V
-29
Iohmax Pull-up Current
Vout=3.315V
Iolmin Pull-down Current Vout=1.95V
29
Iolmax Pull-down Current
Vout=0.4V
trh
3.3V Type 3 output 3.3V @0.4V-2.4V 0.5
Rise Edge Rate
10pF load
tfh
3.3V Type 3 output 3.3V @2.4V-0.4V 0.5
Fall Edge Rate
20pF load
mA
-23
mA
mA
27
mA
2.0
V/ns
2.0
V/ns
CMEI
6
CMA8864-04