PERICOM PI74FCT828T

PI74FCT827/828T
(25Ω
Ω Series) P174FCT2827/2828T
10-BIT BUFFERS
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PI74FCT827T, PI74FCT828T
(25Ω
Ω Series) PI74FCT2827T
Ω Series) PI74FCT2828T
(25Ω
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Fast CMOS
10-Bit Buffers
Product Features
Product Description
• PI74FCT827/828/2827/2828T are pin compatible with bipolar
FAST™ Series at a higher speed and lower power
consumption
• 25Ω series resistor on all outputs (FCT2XXX only)
• TTL input and output levels
• Low ground bounce outputs
• Extremely low static power
• Hysteresis on all inputs
• Industrial operating temperature range: –40°C to +85°C
• Packages available:
– 24-pin 300-mil wide plastic DIP (P)
– 24-pin 150-mil wide plastic QSOP (Q)
– 24-pin 150-mil wide plastic TQSOP (R)
– 24-pin 300-mil wide plastic SOIC (S)
Pericom Semiconductor’s PI74FCT series of logic circuits are
produced in the Company’s advanced 0.8 micron CMOS
technology, achieving industry leading speed grades. All
PI74FCT2XXX devices have a built-in 25-ohm series resistor on
all outputs to reduce noise because of reflections, thus eliminating
the need for an external terminating resistor.
The PI74FCT827/828T and the PI74FCT2827/2828T are 10-bit
wide bus drivers providing high-performance bus interface
buffering for wide address/data paths or buses carrying parity. The
10-bit buffers have NAND-ed output enables for maximum control
flexibility. They are designed for high-capacitance load drive
capability, while providing low-capacitance bus loading at both
inputs and outputs. The PI74FCT827/2827T is a non-inverting of
the PI74FCT828/2828T.
Device models available upon request.
Logic Block Diagram
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
Y9
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
NOTE: PI74FCT827 is shown.
1
OE1 OE2
PS2029B
10/27/98
PI74FCT827/828T
(25Ω
Ω Series) P174FCT2827/2828T
10-BIT BUFFERS
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Product Pin Configuration
Product Pin Description
OE
1
24
Vcc
D0
2
23
Y0
D1
3
22
Y1
D2
4
21
Y2
20
Y3
19
Y4
18
Y5
24-PIN
P24
Q24
R24
S24
D3
5
D4
6
D5
7
D6
8
17
Y6
D7
9
16
Y7
D8
10
15
Y8
D9
11
14
Y9
GND
12
13
OE2
PI74FCT827/2827T
Truth Table (Non-Inverting)(1)
Function
Inputs
OE1
OE2
Description
Output Enable Input (Active LOW)
10-bit Data Inputs
10-bit Data Outputs
Ground
Power
PI74FCT828/2828T
Truth Table (Inverting)(1)
DN
Outputs
YN
Transparent
L
L
L
L
Three-State
L
H
X
L
X
H
H
X
X
H
Z
Z
1.
Pin Name
OEN
D0-D9
Y0-Y9
GND
VCC
Inputs
Function
Outputs
OE1
OE2
DN
YN
Transparent
L
L
L
H
Three-State
L
H
X
L
X
H
H
X
X
L
Z
Z
H = High Voltage Level
L = Low Voltage Level
X = Don’t Care
Z = High Impedance
2
PS2029B
10/27/98
PI74FCT827/828T
(25Ω
Ω Series) P174FCT2827/2828T
10-BIT BUFFERS
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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%)
Parameters Description
Test Conditions(1)
Min. Typ(2) Max. Units
VOH
Output HIGH Voltage
VCC = Min., VIN = VIH or VIL
IOH = –15.0mA
2.4
3.0
V
VOL
Output LOW Current
VCC = Min., VIN = VIH or VIL
IOL = 48mA
0.3
0.50
V
VOL
Output LOW Current
VCC = Min., VIN = VIH or VIL
IOL = 12mA (25Ω Series)
0.3
0.50
V
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
IOZH
High Impedance
IOZL
Output Current
VIK
Clamp Diode Voltage
VCC = Min., IIN = –18mA
IOFF
Power Down Disable
VCC = GND, VOUT = 4.5V
IOS
Short Circuit Current
VCC = Max.(3), VOUT = GND
VH
Input Hysteresis
2.0
V
0.8
V
VIN = VCC
1
µA
VCC = Max.
VIN = GND
–1
µA
VCC = MAX.
VOUT = 2.7V
1
µA
VOUT = 0.5V
–1
µA
–0.7
–1.2
V
—
—
100
µA
–60
–120
mA
200
mV
Capacitance (TA = 25°C, f = 1 MHz)
Parameters(4)
Description
Test Conditions
Typ
Max.
Units
CIN
Input Capacitance
VIN = 0V
6
10
pF
COUT
Output Capacitance
VOUT = 0V
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.
3
PS2029B
10/27/98
PI74FCT827/828T
(25Ω
Ω Series) P174FCT2827/2828T
10-BIT BUFFERS
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Power Supply Characteristics
Test Conditions(1)
Parameters Description
Min.
Typ(2)
Max.
Units
ICC
Quiescent Power
Supply Current
VCC = Max.
VIN = GND
or VCC
0.1
500
µA
∆ICC
Supply Current per
Input @ TTL HIGH
VCC = Max.
VIN = 3.4V(3)
0.5
2.0
mA
ICCD
Supply Current per
Input per MHz(4)
VCC = Max.,
Outputs Open
OE1 = OE2 = GND
One Input Toggling
50% Duty Cycle
VIN = VCC
VIN = GND
0.15
0.25
mA/
MHz
IC
Total Power Supply
Current(6)
VCC = Max.,
Outputs Open
fCP = 10 MHZ
50% Duty Cycle
OE1 = OE2 = GND
fI = 5 MHZ
One Bit Toggling
VCC = Max.,
Outputs Open
fCP = 10 MHZ
50% Duty Cycle
OE1 = OE2 = GND
Eight Bits Toggling
fI = 2.5 MHZ
50% Duty Cycle
VIN = VCC
VIN = GND
1.5
3.5(5)
mA
VIN = 3.4V
VIN = GND
1.8
4.5(5)
VIN = VCC
VIN = GND
3.0
6.0(5)
VIN = 3.4V
VIN = GND
5.0
14.0(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.
4
PS2029B
10/27/98
PI74FCT827/828T
(25Ω
Ω Series) P174FCT2827/2828T
10-BIT BUFFERS
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PI74FCT827/2827T (non-inverting) Switching Characteristics over Operating Range
827AT/2827AT 827BT/2827BT
Com.
Parameters
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
827CT/2827CT
Com.
827DT
Com.
Com.
Description
Conditions(1)
Min.
Max.
Min.
Max.
Min.
Max.
Propagation Delay
DN to YN
CL = 50pF
RL = 500Ω
CL = 300pF(3)
RL = 500Ω
CL = 50pF
RL = 500Ω
CL = 300pF(3)
RL = 500Ω
CL = 5pF(3)
RL = 500Ω
CL = 50pF
RL = 500Ω
1.5
6.5
1.5
5.0
1.5
4.4
1.5
3.8
1.5
15.0
1.5
13.0
1.5
10.0
1.5
7.5
1.5
9.5
1.5
8.0
1.5
7.0
1.5
5.0
1.5
23.0
1.5
15.0
1.5
14.0
1.5
9.0
1.5
8.5
1.5
6.0
1.5
5.7
1.5
4.3
1.5
10.0
1.5
7.0
1.5
6.0
1.5
4.3
Output Enable Time
OEN to YN
Output Disable Time(3)
OEN to YN
Min. Max.
Units
ns
PI74FCT828/2828T (inverting) Switching Characteristics over Operating Range
Parameters
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
(1)
828AT/2828AT
828BT/2828BT
828CT
Com.
Com.
Com.
Description
Conditions
Min.
Max.
Min.
Max.
Min.
Max.
Units
Propagation Delay
DN to YN
CL = 50 pF
RL = 500Ω
CL = 300 pF(3)
RL = 500Ω
CL = 50 pF
RL = 500Ω
CL = 300 pF(3)
RL = 500Ω
CL = 5 pF(3)
RL = 500Ω
CL = 50 pF
RL = 500Ω
1.5
6.5
1.5
5.5
1.5
4.4
ns
1.5
15.0
1.5
13.0
1.5
10.0
ns
1.5
9.5
1.5
8.0
1.5
7.0
ns
1.5
23.0
1.5
15.0
1.5
14.0
ns
1.5
8.5
1.5
6.0
1.5
5.7
ns
1.5
10.0
1.5
7.0
1.5
6.0
ns
Output Enable Time
OEN to YN
Output Disable Time(3)
OEN to YN
Notes:
1. See test circuit and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. This parameter is guaranteed but not production tested.
Pericom Semiconductor Corporation
2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com
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PS2029B
10/27/98