Low Skew, 1-to-4 LVCMOS/LVTTL
Fanout Buffer
8304I
Data Sheet
©2015 Integrated Device Technology, Inc December 10, 20151
GENERAL DESCRIPTION
The 8304I is a low skew, 1-to-4 Fanout Buffer. The 8304I is charac-
terized at full 3.3V for input V
DD
, and mixed 3.3V and 2.5V for output
operating supply modes (V
DDO
). Guaranteed output and part-to-part
skew characteristics make the 8304I ideal for those clock distribution
applications demanding well defi ned performance and repeatability.
FEATURES
Four LVCMOS / LVTTL outputs
LVCMOS clock input
CLK can accept the following input levels: LVCMOS, LVTTL
Maximum output frequency: 166MHz
Output skew: 60ps (maximum)
Part-to-part skew: 650ps (maximum)
Small 8 lead SOIC package saves board space
3.3V input, outputs may be either 3.3V or 2.5V supply modes
-40°C to 85°C ambient operating temperature
Available in lead-free (RoHS 6) compliant package
BLOCK DIAGRAM PIN ASSIGNMENT
8304I
8-Lead SOIC
3.8mm x 4.8mm, x 1.47mm package body
M Package
Top View
VDDO
VDD
CLK
GND
1
2
3
4
Q3
Q2
Q1
Q0
8
7
6
5
Q0
Q1
Q2
Q3
CLK
Pulldown
8304I Data Sheet
©2015 Integrated Device Technology, Inc December 10, 20152
TABLE 1. PIN DESCRIPTIONS
TABLE 2. PIN CHARACTERISTICS
Symbol Parameter Test Conditions Minimum Typical Maximum Units
C
IN
Input Capacitance 4pF
C
PD
Power Dissipation Capacitance
(per output)
V
DD
, V
DDO
= 3.465V
15 pF
R
PULLDOWN
Input Pulldown Resistor 51
kΩ
R
OUT
Output Impedance 7
Ω
Number Name Type Description
1V
DDO
Power Output supply pin. Connect to 3.3V or 2.5V.
2V
DD
Power Positive supply pin. Connect to 3.3V.
3 CLK Input Pulldown LVCMOS / LVTTL clock input.
4 GND Power Power supply ground. Connect to ground.
5 Q0 Output Single clock output. LVCMOS / LVTTL interface levels.
6 Q1 Output Single clock output. LVCMOS / LVTTL interface levels.
7 Q2 Output Single clock output. LVCMOS / LVTTL interface levels.
8 Q3 Output Single clock output. LVCMOS / LVTTL interface levels.
NOTE: Pulldown refer to internal input resistors. See Table 2, Pin Characteristics, for typical values.
8304I Data Sheet
©2015 Integrated Device Technology, Inc December 10, 20153
TABLE 3A. POWER SUPPLY DC CHARACTERISTICS, V
DD
= V
DDO
= 3.3V±5%, TA = -40°C TO 85°C
Symbol Parameter Test Conditions Minimum Typical Maximum Units
V
DD
Power Supply Voltage 3.135 3.3 3.465 V
V
DDO
Output Power Supply Voltage 3.135 3.3 3.465 V
I
DD
Power Supply Current 18 mA
I
DDO
Output Supply Current 11 mA
TABLE 3C. LVCMOS / LVTTL DC CHARACTERISTICS, V
DD
= V
DDO
= 3.3V±5%, TA = -40°C TO 85°C
Symbol Parameter Test Conditions Minimum Typical Maximum Units
V
IH
Input High Voltage 2 V
DD
+ 0.3 V
V
IL
Input Low Voltage -0.3 1.3 V
I
IH
Input High Current V
DD
= V
IN
= 3.465V 150 µA
I
IL
Input Low Current V
DD
= 3.465V, V
IN
= 0V -5 µA
V
OH
Output High Voltage
Refer to NOTE 1 2.6 V
I
OH
= -16mA 2.9 V
I
OH
= -100uA 3 V
V
OL
Output Low Voltage
Refer to NOTE 1 0.5 V
I
OL
= 16mA 0.25 V
I
OL
= 100uA 0.15 V
NOTE 1: Outputs terminated with 50
ΩΩ to V
DDO
/2. See Parameter Measurement Section, “3.3V Output Load Test Circuit”.
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V
DD
4.6V
Inputs, V
I
-0.5V to V
DD
+ 0.5 V
Outputs, V
O
-0.5V to V
DDO
+ 0.5V
Package Thermal Impedance, θ
JA
112.7°C/W (0 lfpm)
Storage Temperature, T
STG
-65°C to 150°C
NOTE: Stresses beyond those listed under Absolute
Maximum Ratings may cause permanent damage to the
device. These ratings are stress specifi cations only. Functional
operation of product at these conditions or any conditions beyond
those listed in the DC Characteristics or AC Characteristics is not
implied. Exposure to absolute maximum rating conditions for ex-
tended periods may affect product reliability.
TABLE 3B. POWER SUPPLY DC CHARACTERISTICS, V
DD
= 3.3V±5%, V
DDO
= 2.5V±5%, TA = -40°C TO 85°C
Symbol Parameter Test Conditions Minimum Typical Maximum Units
V
DD
Positive Supply Voltage 3.135 3.3 3.465 V
V
DDO
Output Supply Voltage 2.375 2.5 2.625 V
I
DD
Power Supply Current 18 mA
I
DDO
Output Supply Current 11 mA

8304AMILFT

Mfr. #:
Manufacturer:
IDT
Description:
Clock Buffer 1-to-4 LVCMOS Fanout Buffer
Lifecycle:
New from this manufacturer.
Delivery:
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