ICS8344BYT View Datasheet(PDF) - Integrated Circuit Systems
Part Name
Description
MFG CO.
'ICS8344BYT' PDF : 15 Pages View PDF
Integrated
Circuit
Systems, Inc.
PRELIMINARY
ICS8344
LOW SKEW, 1-TO-24
DIFFERENTIAL-TO-LVCMOS FANOUT BUFFER
TABLE 1. PIN DESCRIPTIONS
Number
Name
Type
Description
1, 2, 5, 6
7, 8, 11, 12
Q16, Q17, Q18, Q19
Q20, Q21, Q22, Q23
Output
Q15 thru Q23 outputs. 7Ω typical output impedance.
3, 9, 28,
34, 39, 45
4, 10, 14,18,
27, 33, 40, 46
13
15, 19
VDDO
GND
CLK_SEL
VDDI
Power
Output power supply. Connect 3.3V or 2.5V.
Power
Power supply ground. Connect to ground.
Input
Power
Pulldown
Clock select input. Selects between CLK0, nCLK0 and CLK1,
nCLK1 as the differential pair that controls the output.
Input power supply. Connect 3.3V or 2.5V.
16
nCLK1
Input Pullup Inverting input of secondary differential clock input pair.
17
CLK1
Input Pulldown Non-inverting input of secondary differential clock input pair.
20
nCLK0
Input Pullup Inverting input of primary differential clock input pair.
21
22
23
24
25, 26, 29, 30
31, 32, 35, 36
37, 38, 41, 42
43, 44, 47, 48
CLK0
OE3
OE2
OE1
Q0, Q1, Q2, Q3
Q4, Q5, Q6, Q7
Q8, Q9, Q10, Q11
Q12, Q13, Q14, Q15
Input
Input
Input
Input
Output
Output
Pulldown Non-inverting input of primary differential clock input pair.
Pullup
Output enable. Controls enabling and disabling of outputs
Q16 thru Q23.
Pullup
Pullup
Output enable. Controls enabling and disabling of outputs
Q8 thru Q15.
Output enable. Controls enabling and disabling of outputs
Q0 thru Q7.
Q0 thru Q7 outputs. 7Ω typical output impedance.
Q8 thru Q15 outputs. 7Ω typical output impedance.
TABLE 2. PIN CHARACTERISTICS
Symbol
CIN
Parameter
Input
Capacitance
CLK0, nCLK0,
CLK1, nCLK1
CLK_SEL,
OE1, OE2, OE3
CPD
Power Dissipation Capacitance
(per output)
RPULLUP
RPULLDOWN
ROUT
Input Pullup Resistor
Input Pulldown Resistor
Output Impedance
Test Conditions
VDDI, VDDO = 3.465V
VDDI = 3.465V, VDDO =
2.625V
VDDI, VDDO = 2.625V
Minimum Typical Maximum Units
pF
pF
pF
pF
pF
51
KΩ
51
KΩ
7
Ω
8344
www.icst.com
2
REV. B FEBRUARY 2, 2001
Share Link: 
