IDT IDT74FCT646CTPY Fast cmos octal transceiver/ register (3-state) Datasheet

IDT54/74FCT646T/AT/CT
FAST CMOS OCTAL TRANSCEIVER/REGISTER (3-STATE)
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
FAST CMOS OCTAL
TRANSCEIVER/
REGISTER (3-STATE)
DESCRIPTION:
FEATURES:
•
•
•
•
•
•
•
•
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IDT54/74FCT646T/AT/CT
The FCT646T consists of a bus transceiver with 3-state D-type flip-flops
and control circuitry arranged for multiplexed transmission of data directly
from the data bus or from the internal storage registers. The FCT646T
utilizes the enable control (G) and direction (DIR) pins to control the
transceiver functions.
SAB and SBA control pins are provided to select either real- time or stored
data transfer. The circuitry used for select control will eliminate the typical
decoding glitch that occurs in a multiplexer during the transition between
stored and real-time data. A low input level selects real-time data and a high
selects stored data.
Data on the A or B data bus, or both, can be stored in the internal D flipflops by low-to-high transitions at the appropriate clock pins (CPAB or
CPBA), regardless of the select or enable control pins.
Std., A, and C grades
Low input and output leakage ≤1µA (max.)
CMOS power levels
True TTL input and output compatibility:
– VOH = 3.3V (typ.)
– VOL = 0.3V (typ.)
High Drive outputs (-15mA IOH, 64mA IOL)
Meets or exceeds JEDEC standard 18 specifications
Military product compliant to MIL-STD-883, Class B and DESC
listed (dual marked)
Power off disable outputs permit "live insertion"
Available in the following packages:
– Industrial: SOIC, SSOP, QSOP, TSSOP
– Military: CERDIP, LCC
FUNCTIONAL BLOCK DIAGRAM
G
DIR
CPB A
SBA
CPA B
SAB
B REG
ONE OF EIGHT CHANNELS
1D
C1
A1
A REG
B1
1D
C1
TO SEVE N OTHER CHANN ELS
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
JUNE 2002
1
© 2002 Integrated Device Technology, Inc.
DSC-5505/3
IDT54/74FCT646T/AT/CT
FAST CMOS OCTAL TRANSCEIVER/REGISTER (3-STATE)
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
A1
4
21
G
A2
5
20
B1
A3
6
19
B2
A4
7
18
B3
A5
8
17
B4
A6
9
16
B5
A7
10
15
B6
A8
11
14
B7
GND
12
13
B8
Max
Unit
–0.5 to +7
V
VTERM(3) Terminal Voltage with Respect to GND
–0.5 to VCC+0.5
V
TSTG
Storage Temperature
–65 to +150
°C
IOUT
DC Output Current
–60 to +120
mA
Typ.
SBA
26
24
B1
A3
7
23
B2
NC
8
22
NC
A4
9
21
B3
A5
10
20
B4
A6
11
19
B5
B1 - B8
12
13
14
15
16
17
18
Max.
CPAB, CPBA
SAB, SBA
DIR, G
Unit
CIN
Input Capacitance
VIN = 0V
6
10
pF
COUT
Output Capacitance
VOUT = 0V
8
12
pF
Description
Data Register A Inputs
Data Register B Outputs
Data Register B Inputs
Data Register A Outputs
CAPACITANCE (TA = +25°C, F = 1.0MHz)
Conditions
27
6
A2
Pin Names
A1 - A8
NOTES:
1. Stresses greater than those listed under ABSOLUTE 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. No terminal voltage may exceed
Vcc by +0.5V unless otherwise noted.
2. Inputs and Vcc terminals only.
3. Output and I/O terminals only.
Parameter(1)
28
1
PIN DESCRIPTION
VTERM(2) Terminal Voltage with Respect to GND
Symbol
2
LCC
TOP VIEW
ABSOLUTE MAXIMUM RATINGS(1)
Description
3
G
5
CERDIP/ SOIC/ SSOP/ QSOP/ TSSOP
TOP VIEW
Symbol
4
25
A1
B6
SBA
CPBA
22
B7
3
Vcc
DIR
B8
CPBA
NC
23
NC
2
CPAB
SAB
INDEX
GND
VCC
SAB
24
A8
1
A7
CPAB
DIR
PIN CONFIGURATION
NOTE:
1. This parameter is measured at characterization but not tested.
2
Clock Pulse Inputs
Output Data Source Select Inputs
Output Enable Inputs
IDT54/74FCT646T/AT/CT
FAST CMOS OCTAL TRANSCEIVER/REGISTER (3-STATE)
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
FUNCTION TABLE(1)
Data I/O(2)
Inputs
G
DIR
CPAB
CPBA
SAB
SBA
A1 - A8
B1 - B8
H
X
H or L
H or L
H
X
↑
↑
X
X
Input
Input
X
X
L
L
X
X
X
L
L
L
X
H or L
X
H
L
H
X
X
L
X
L
H
H or L
X
H
X
Operation or Function
Isolation
Store A and B Data
Output
Input
Input
Output
Real-Time B Data to A Bus
Stored B Data to A Bus
Real-Time A Data to B Bus
Stored A Data to B Bus
NOTES:
1. H = HIGH
L = LOW
X = Don't Care
↑ = LOW-to-HIGH transition.
Select control = L: clocks can occur simultaneously.
Select control = H: clocks must be staggered in order to load both registers.
2. The data output functions may be enabled or disabled by various signals at the GAB or GBA inputs. Data input functions are always enabled, i.e. data at the bus pins will be
stored on every LOW-to-HIGH transition on the clock inputs.
3. A in B Register.
4. B in A Register.
DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE
Following Conditions Apply Unless Otherwise Specified:
Industrial: TA = –40°C to +85°C, VCC = 5.0V ±5%; Military: TA = –55°C to +125°C, VCC = 5.0V ±10%
Symbol
Test Conditions(1)
Parameter
Min.
Typ.(2)
Max.
Unit
VIH
Input HIGH Level
Guaranteed Logic HIGH Level
2
—
—
V
VIL
Input LOW Level
Guaranteed Logic LOW Level
—
—
0.8
V
IIH
Input HIGH Current(4)
VCC = Max.
VI = 2.7V
—
—
±1
µA
IIL
Input LOW Current(4)
VCC = Max.
VI = 0.5V
—
—
±1
µA
IOZH
High Impedance Output Current
VCC = Max
VO = 2.7V
—
—
±1
µA
IOZL
(3-State output pins)(4)
VO = 0.5V
—
—
±1
II
VIK
VH
Input HIGH Current(4)
Clamp Diode Voltage
Input Hysteresis
VCC = Max., VI = VCC (Max.)
VCC = Min, IIN = -18mA
—
—
—
—
–0.7
200
±1
–1.2
—
µA
V
mV
ICC
Quiescent Power Supply Current
VCC = Max., VIN = GND or VCC
—
0.01
1
µA
Min.
2.4
Typ.(2)
3.3
Max.
—
Unit
2
3
—
—
0.3
0.55
V
—
OUTPUT DRIVE CHARACTERISTICS
Symbol
VOH
Parameter
Output HIGH Voltage
VCC = Min
VIN = VIH or VIL
Test Conditions(1)
IOH = –6mA MIL
IOH = –8mA IND
IOH = –12mA MIL
IOH = –15mA IND
IOL = 48mA MIL
IOL = 64mA IND
V
VOL
Output LOW Voltage
VCC = Min
VIN = VIH or VIL
IOS
Short Circuit Current
VCC = Max., VO = GND(3)
–60
–120
–225
mA
IOFF
Input/Output Power Off Leakage(5)
VCC = 0V, VIN or VO ≤ 4.5V
—
—
±1
µA
NOTES:
1. For conditions shown as Min. or Max., use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at VCC = 5.0V, +25°C ambient.
3. Not more than one output should be tested at one time. Duration of the test should not exceed one second.
4. The test limit for this parameter is ±5µA at TA = –55°C.
5. This parameter is guaranteed but not tested.
3
IDT54/74FCT646T/AT/CT
FAST CMOS OCTAL TRANSCEIVER/REGISTER (3-STATE)
BUS
A
DIR
L
G
L
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
BUS
B
CPAB
X
CPBA
X
BUS
A
SAB
X
DIR
H
SBA
L
G
L
Real-Time Transfer
Bus B to A
BUS
A
BUS
B
CPAB
X
CPBA
X
SAB
L
SBA
X
Real-Time Transfer
Bus A to B
BUS
A
BUS
B
DIR
G
CPAB
CPBA
SAB
SBA
H
L
↑
X
X
X
L
L
X
↑
X
X
X
H
↑
↑
X
X
DIR
L
H
Storage From
A and/or B
G
L
L
BUS
B
CPAB
X
H or L
CPBA
H or L
X
Transfer Stores (1)
Data to A and/or B
NOTE:
1. Cannot transfer data to A bus and B bus simultaneously.
4
SAB
X
H
SBA
H
X
IDT54/74FCT646T/AT/CT
FAST CMOS OCTAL TRANSCEIVER/REGISTER (3-STATE)
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
POWER SUPPLY CHARACTERISTICS
Test Conditions(1)
Min.
Typ.(2)
Max.
Unit
—
0.5
2
mA
VIN = VCC
VIN = GND
—
0.15
0.25
mA/
MHz
VCC = Max.
Outputs Open
fCP = 10MHz
50% Duty Cycle
VIN = VCC
VIN = GND
—
1.5
3.5
mA
G = DIR = GND
One Bit Toggling
at fi = 5MHz
VIN = 3.4V
VIN = GND
—
2
5.5
VCC = Max.
Outputs Open
fCP = 10MHz
VIN = VCC
VIN = GND
—
3.8
7.3(5)
VIN = 3.4V
VIN = GND
—
6
16.3(5)
Symbol
Parameter
∆ICC
Quiescent Power Supply Current
TTL Inputs HIGH
VCC = Max.
VIN = 3.4V(3)
ICCD
Dynamic Power Supply
Current(4)
VCC = Max.
Outputs Open
G = DIR = GND
One Input Toggling
50% Duty Cycle
Total Power Supply Current(6)
IC
50% Duty Cycle
G = DIR = GND
Eight Bits Toggling
at fi = 2.5MHz
NOTES:
1. For conditions shown as Min. or Max., use appropriate value specified under Electrical Characteristics for the applicable device type.
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 ∆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 = Output Frequency
Ni = Number of Outputs at fi
All currents are in milliamps and all frequencies are in megahertz.
5
IDT54/74FCT646T/AT/CT
FAST CMOS OCTAL TRANSCEIVER/REGISTER (3-STATE)
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
SWITCHING CHARACTERISTICS OVER OPERATING RANGE
Symbol
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
tPLH
tPHL
tPLH
tPHL
tSU
tH
tW
Parameter
Propagation Delay,
Bus to Bus
Output Enable Time,
G, DIR to Bus
Output Disable Time,
G, DIR to Bus
Propagation Delay,
Clock to Bus
Propagation Delay,
SBA or SAB to Bus
Set-up Time HIGH or LOW,
Bus to Clock
Hold Time HIGH or LOW,
Bus to Clock
Clock Pulse Width,
HIGH or LOW
Condition(1)
CL = 50pF
RL = 500Ω
54FCT646T
Mil.
(2)
Min.
Max.
2
11
54/74FCT646AT
Ind.
Mil.
(2)
(2)
Min.
Max. Min.
Max.
2
6.3
2
7.7
54/74FCT646CT
Ind.
Mil.
(2)
(2)
Min.
Max. Min. Max. Unit
1.5
5.4
1.5
6
ns
2
15
2
9.8
2
10.5
1.5
7.8
1.5
8.9
ns
2
11
2
6.3
2
7.7
1.5
6.3
1.5
7.7
ns
2
10
2
6.3
2
7
1.5
5.7
1.5
6.3
ns
2
12
2
7.7
2
8.4
1.5
6.2
1.5
7
ns
4.5
—
2
—
2
—
2
—
2
—
ns
2
—
1.5
—
1.5
—
1.5
—
1.5
—
ns
6
—
5
—
5
—
5
—
5
—
ns
NOTES:
1. See test circuit and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
6
IDT54/74FCT646T/AT/CT
FAST CMOS OCTAL TRANSCEIVER/REGISTER (3-STATE)
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
TEST CIRCUITS AND WAVEFORMS
V CC
SWITCH POSITION
7.0V
500Ω
V OUT
VIN
Pulse
Generator
D.U.T
.
50pF
RT
500Ω
Test
Switch
Open Drain
Disable Low
Enable Low
Closed
All Other Tests
Open
DEFINITIONS:
CL = Load capacitance: includes jig and probe capacitance.
RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.
CL
Octal link
Test Circuits for All Outputs
DATA
INPUT
tH
tSU
TIMING
INPUT
ASYNCHRONOUS CONTROL
PRESET
CLEAR
ETC.
SYNCHRONOUS CONTROL
PRESET
CLEAR
CLOCK ENABLE
ETC.
3V
1.5V
0V
3V
1.5V
0V
tREM
tSU
LOW-HIGH-LOW
PULSE
1.5V
tW
3V
1.5V
0V
HIGH-LOW-HIGH
PULSE
3V
1.5V
0V
tH
1.5V
Octal link
Pulse Width
Octal link
Set-Up, Hold, and Release Times
ENABLE
SAME PHASE
INPUT TRANSITION
tPLH
tPHL
OUTPUT
tPLH
OPPOSITE PHASE
INPUT TRANSITION
tPHL
3V
1.5V
0V
DISABLE
3V
1.5V
CONTROL
INPUT
OUTPUT
NORMALLY
LOW
3V
1.5V
0V
OUTPUT
NORMALLY
HIGH
Octal link
SWITCH
CLOSED
tPZH
SWITCH
OPEN
0V
tPLZ
tPZL
VOH
1.5V
VOL
3.5V
3.5V
1.5V
0.3V
VOL
tPHZ
0.3V
1.5V
0V
VOH
0V
Octal link
Propagation Delay
Enable and Disable Times
NOTES:
1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH.
2. Pulse Generator for All Pulses: Rate ≤ 1.0MHz; tF ≤ 2.5ns; tR ≤ 2.5ns.
7
IDT54/74FCT646T/AT/CT
FAST CMOS OCTAL TRANSCEIVER/REGISTER (3-STATE)
MILITARY AND INDUSTRIAL TEMPERATURE RANGES
ORDERING INFORMATION
XXXX
IDT
XX
FCT
Device Type
Temp. Range
XX
Package
X
Process
CORPORATE HEADQUARTERS
2975 Stender Way
Santa Clara, CA 95054
Blank
B
Industrial
MIL-STD-883, Class B
SO
PY
Q
PG
Industrial Options
Small Outline IC
Shrink Small Outline Package
Quarter-size Small Outline Package
Thin Shrink Small Outline Package
D
L
Military Options
CERDIP
Leadless Chip Carrier
646T
646AT
646CT
Fast CMOS Octal Transceiver/Register (3-State)
54
74
– 55°C to +125°C
– 40°C to +85°C
for SALES:
800-345-7015 or 408-727-6116
fax: 408-492-8674
www.idt.com
8
for Tech Support:
[email protected]
(408) 654-6459
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