ETC PI49FCT807TP

PI49FCT807T
PI49FCT2807T
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Fast CMOS Clock Driver
Product Features
Product Description
•
•
•
•
•
•
Guaranteed low skew: 0.25ns
Low input capacitance
Minimum duty cycle distortion
1:10 fanout
High speed: 3.5ns propagation delay
TTL input and CMOS output compatible
– VOH = 3.3V (typ.)
– VOL = 0.3V (typ.)
• Packages available:
– 20-pin 300 mil wide DIP (P)
– 20-pin 300 mil wide SOIC (S)
– 20-pin 150 mil wide QSOP (Q)
– 20-pin 209 mil wde SSOP (H)
• Industrial Operation at -40ºC to +85ºC
Pericom Semiconductor’s PI49FCT series of logic circuits are
produced using the Company’s advanced 0.8 micron CMOS
technology, achieving industry leading speed grades.
Product Pin Configuration
Logic Block Diagram
A
GND
B0
VCC
B1
GND
B2
VCC
B3
GND
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
The PI49FCT807T and PI49FCT2807T clock drivers feature one
input and ten outputs. The large fanout from a single input line
reduces loading on input clock. TTL level outputs reduce noise
levels on the part. Typical applications are clock and signal
distribution.
The PI49FCT2807T also features a 25Ω on-chip resistor for
lower noise.
VCC
B0
B9
B1
B8
GND
B2
B7
VCC
B3
B6
B4
GND
A
B5
B5
B4
B6
Product Pin Description
Pin Name
A
B0 – B9
GND
VCC
B7
Description
Input
Outputs
Ground
Power
B8
B9
1
PS7008B
02/17/99
PI49FCT807/2807T
Fast
CMOS
Clock Driver
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Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Storage Temperature ........................................................... –65°C to +150°C
Ambient Temperature with Power Applied ............................ -40°C to +85°C
Supply Voltage to Ground Potential (Inputs & Vcc Only) ..... –0.5V to +7.0V
Supply Voltage to Ground Potential (Outputs & D/O Only) .. –0.5V to +7.0V
DC Input Voltage .................................................................. –0.5V to +7.0V
DC Output Current ............................................................................. 120mA
Power Dissipation .................................................................................. 0.5W
Note:
Stresses greater than those listed under MAXIMUM
RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions
above those indicated in the operational sections of
this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may
affect reliability.
DC Electrical Characteristics (Over the Operating Range, TA = -40°C to +85°C, VCC = 5.0V ± 5%)
Test Conditions(1)
Parameters Description
VOH
Output HIGH Voltage
VCC = Min., VIN = VIH or VIL
VOL
Output LOW Current
VCC = Min., VIN = VIH or VIL
VIH
Input HIGH Voltage
Guaranteed Logic HIGH Level
VIL
Input LOW Voltage
Guaranteed Logic LOW Level
IIH
Input HIGH Current
VCC = Max.
IIL
Input LOW Current
VCC = Max.
II
Input HIGH Current
VCC = Max., VIN =VCC (Max.)
VIK
Clamp Diode Voltage
VCC = Min., IIN = –18mA
= Max.(3), V
IOS
Short Circuit Current
VCC
IOFF
Power Down Disable
VCC= GND, VOUT = 4.5V
VH
Input Hysteresis
IOH = –15.0mA
IOH = 48.0mA
Min.
Typ.(2)
Max.
Units
2.4
3.3
0.2
0.5
V
V
0.2
0.5
V
IOL = 12mA(25Ω)
2.0
V
0.8
V
VIN = 2.7V
1
µA
VIN = 0.5V
–1
µA
20
µA
–0.7
–1.2
V
–60
–120
–225
mA
—
—
100
µA
OUT = GND
150
mV
Capacitance (TA = 25°C, f = 1 MHz)
Parameters(4)
Description
Test Conditions
CIN
Input Capacitance
VIN = 0V
COUT
Output Capacitance
VOUT = 0V
Typ.
Max.
Units
6.0
10
pF
8
12
pF
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at Vcc = 5.0V, +25°C ambient and maximum loading.
3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second.
4. This parameter is determined by device characterization but is not production tested.
2
PS7008B
02/17/99
PI49FCT807/2807T
Fast CMOS Clock Driver
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Power Supply Characteristics
Test Conditions(1)
Parameters Description
Typ.(2) Max.
Min.
ICC
Quiescent Power
Supply Current
VCC = Max.
VIN = GND
or Vcc
∆ICC
Supply Current per
Input @ TTL HIGH
VCC = Max.,
ICCD
Supply Current per
Input per MHz(4)
IC
Total Power Supply
Current(6)
Units
3
30
µA
VIN =
3.4V(3)
0.5
1.5
mA
VCC = Max., Outputs Open
50% Duty Cycle,
One Input Toggling
VIN = VCC
VIN = GND
0.4
0.6
mA/
MHz
VCC = Max., Outputs Open
fCP = 50 MHZ,
50% Duty Cycle
VIN = VCC
VIN = GND
VIN = 3.4V
VIN = GND
20
30(5)
mA
20.7
33(5)
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at Vcc = 5.0V, +25°C ambient.
3. Per TTL driven input (VIN = 3.4V); all other inputs at Vcc or GND.
4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations.
5. Values for these conditions are examples of the Icc formula. These limits are guaranteed but not tested.
6. IC =IQUIESCENT + IINPUTS + IDYNAMIC
IC = ICC + ∆ICC DHNT + ICCD (fCP/2 + fINI)
ICC = Quiescent Current
∆ICC = Power Supply Current for a TTL High Input (VIN = 3.4V)
DH = Duty Cycle for TTL Inputs High
NT = Number of TTL Inputs at DH
ICCD = Dynamic Current Caused by an Input Transition Pair (HLH or LHL)
fCP = Clock Frequency for Register Devices (Zero for Non-Register Devices)
fI = Input Frequency
NI = Number of Inputs at fI
All currents are in milliamps and all frequencies are in megahertz.
Switching Characteristics over Operating Range
Parameters
tPLH
tPHL
tSK(o)
tSK(p)
tSK(t)
Description
Conditions
Propagation Delay
A TO BN
Skew between two outputs
of same package(3)
Skew between opposite
transitions of same
output (|tPHL — tPLH|)(3)
Skew between outputs of
different package at same
power supply, temperature
and speed grade(3)
CL = 50pF
RL = 500Ω
(1)
807/2807T
807AT
807BT
807CT
Com.
Com.
Com.
Com.
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Units
1.5
4.5
1.5
4.0
1.5
3.8
1.5
3.5
ns
—
0.5
—
0.5
—
0.35
—
0.25
ns
—
0.5
—
0.5
—
0.35
—
0.35
ns
—
1.0
—
1.0
—
0.75
—
0.75
ns
Notes:
1. See test circuit and wave forms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. This parameter is guaranteed but not tested.
3
PS7008B
02/17/99
PI49FCT807/2807T
Fast
CMOS
Clock Driver
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Tests Circuits For All Outputs(1)
Switch Position
VCC
7.0V
500Ω
VIN
VOUT
Pulse
Generator
50pF
CL
Switch
Closed
All Other Inputs
Open
DEFINITIONS:
CL = Load capacitance: includes jig and
probe capacitance.
RT = Termination resistance: should be
equal to ZOUT of the Pulse Generator.
D.U.T.
RT
Test
Open Drain
Disable LOW
Enable LOW
500Ω
Switching Waveforms
Pulse Skew – tSK(p)
Propagation Delay
3V
Input
3V
1.5V
Input
1.5V
0V
0V
tPHL
tPLH
tPHL
tPLH
VOH
VOH
2.0V
Output
1.5V
Output
0.5V
1.5V
VOL
tR
VOL
tF
tSK(p) =

tPHL • tPLH
Output Skew – tSK(o)
Package Skew – tSK(t)
3V
Input
1.5V
3V
0V
Input
tPHLx
tPLHx
0V
VOH
Ox
1.5V
tPLH1
tPHL1
1.5V
VOH
Package 1
VOL
tSK(o)
1.5V
Output
tSK(o)
VOL
VOH
Oy
tSK(t)
VOH
1.5V
Package 2
tSK(o) =
VOL
tPHLy

tPLHy • tPLHx

or

tPHLy • tPHLx
1.5V
Output
VOL
tPLHy
tSK(t)
tPLH2

tSK(t) =
4
tPHL2
 tPLH2
• tPLH1

or

tPHL2 • tPHL1
PS7008B

02/17/99
PI49FCT807/2807T
Fast CMOS Clock Driver
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Ordering Information
Part Numbe r
M arking Code
PI49FCT807xTp
PI49FCT807Tpx
PI49FCT2807xTp
PI49FCT2807Tpx
Note:
x = Speed Grades: “blank”, A, B, C.
p = Package Type:
H = 209-mil SSOP
P = 300-mil DIP
Q = 150-mil QSOP
S = 300-mil SOIC
Example:
PI49FCT2807ATH = A grade, H pkg marked as PI49FCT2807THA
Pericom Semiconductor Corporation
2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com
5
PS7008B
02/17/99