Integrated Device Technology Inc IDT54823ATEB, IDT54823ATL, IDT54823ATLB, IDT54823ATP, IDT54823ATPB Datasheet

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IDT54/74FCT821AT/BT/CT, 823/825AT/BT/CT/DT HIGH-PERFORMANCE CMOS BUS INTERFACE REGISTERS MILITARY AND COMMERCIAL TEMPERATURE RANGES
6.21 1
Integrated Device Technology, Inc.
1
HIGH-PERFORMANCE CMOS BUS INTERFACE REGISTERS
IDT54/74FCT821AT/BT/CT
IDT54/74FCT823AT/BT/CT/DT
IDT54/74FCT825AT/BT/CT
FEATURES:
• Common features:
– Low input and output leakage 1µA (max.) – CMOS power levels – True TTL input and output compatibility
– VOH = 3.3V (typ.) – V
OL = 0.3V (typ.)
– Meets or exceeds JEDEC standard 18 specifications – Product available in Radiation Tolerant and Radiation
Enhanced versions
– Military product compliant to MIL-STD-883, Class B
and DESC listed (dual marked)
– Available in DIP, SOIC, SSOP, QSOP, CERPACK
and LCC packages
• Features for FCT821T/FCT823T/FCT825T:
– A, B, C and D speed grades – High drive outputs (-15mA IOH, 48mA IOL) – Power off disable outputs permit “live insertion”
DESCRIPTION:
The FCT82xT series is built using an advanced dual metal CMOS technology. The FCT82xT series bus interface regis­ters are designed to eliminate the extra packages required to buffer existing registers and provide extra data width for wider address/data paths or buses carrying parity. The FCT821T are buffered, 10-bit wide versions of the popular FCT374T function. The FCT823T are 9-bit wide buffered registers with Clock Enable (EN) and Clear (
CLR
) – ideal for parity bus interfacing in high-performance microprogrammed systems. The FCT825T are 8-bit buffered registers with all the FCT823T controls plus multiple enables (OE1, OE2, OE3) to allow multi­user control of the interface, e.g., CS, DMA and RD/WR. They are ideal for use as an output port requiring high I
OL/IOH.
The FCT82xT high-performance interface family can drive large capacitive loads, while providing low-capacitance bus loading at both inputs and outputs. All inputs have clamp diodes and all outputs are designed for low-capacitance bus loading in high-impedance state.
MILITARY AND COMMERCIAL TEMPERATURE RANGES AUGUST 1995
1995 Integrated Device Technology, Inc 6.21 DSC-4202/5
FUNCTIONAL BLOCK DIAGRAM
D
CP
Q
Q
CL
D
CP
Q
Q
CL
D
0
D
N
Y
0
Y
N
EN
CLR
CP
OE
2567 drw 01
IDT54/74FCT821AT/BT/CT, 823/825AT/BT/CT/DT HIGH-PERFORMANCE CMOS BUS INTERFACE REGISTERS MILITARY AND COMMERCIAL TEMPERATURE RANGES
6.21 2
PIN CONFIGURATIONS
FCT821 10-BIT REGISTER
2567 drw 04
2567 drw 03
FCT823 9-BIT REGISTER
2567 drw 02
INDEX
D2
Y2 Y3 Y4 NC Y
5
OE
D
1
NC
V
CC
Y0
D8
GND
CP
Y
9
Y8
LCC
TOP VIEW
32
20 19
1
4 5 6 7 8
1817161514
9 10 11
1213
L28-1
D3 D4
NC
D
5
D6 D7
D0
Y1
Y6 Y7
21
22
23
24
25
262728
D9
NC
INDEX
D
2
Y
2
Y
3
Y
4
NC Y
5
OE
D
1
NC
V
CC
Y
0
LCC
TOP VIEW
32
20 19
1
4 5 6 7 8
1817161514
9 10
11
1213
L28-1
D
3
D
4
NC
D
5
D
6
D
7
D
8
GND
CP
EN
Y
8
D
0
Y
1
Y
6
Y
7
21
22
23
24
25
262728
CLR
NC
INDEX
D1
Y1 Y2 Y3 NC Y
4
D
0
NC
VCCOE
3
LCC
TOP VIEW
32
20 19
1
4 5 6 7 8
1817161514
9 10 11
1213
L28-1
D
2
D3
NC
D
4
D5 D6
D
7
GND
CP
EN
Y
7
OE
2
Y
0
Y5 Y6
21
22
23
24
25
262728
CLR
NC
OE
1
OE
D
0
D
1
D
2
D
3
D
4
D
5
D
6
D
7
GND
Y
0
Y
1
Y
2
Y
3
Y
4
Y
6
CP
Y
5
Y
7
V
CC
1 2 3 4 5 6 7 8 9 10
13
14
15
16
17
18
19
20
P24-1
D24-1 SO24-2 SO24-7 SO24-8
&
E24-1
11 12
21
22
23
24
D
8
CLR
Y
8
EN
DIP/SOIC/SSOP/QSOP/CERPACK
TOP VIEW
OE
D
0
D1 D2 D3 D4 D5 D6 D7
GND
Y
0
Y1 Y2 Y3 Y4
Y6
CP
Y
5
Y7
VCC1 2 3 4 5 6 7 8 9 10
13
14
15
16
17
18
19
20
P24-1
D24-1 SO24-2 SO24-7 SO24-8
&
E24-1
11 12
21
22
23
24
D
8
D9
Y8 Y9
DIP/SOIC/SSOP/QSOP/CERPACK
TOP VIEW
FCT825 8-BIT REGISTER
OE1
D0 D1 D2 D3 D4 D5 D6 D7
GND
Y
0
Y1 Y2 Y3 Y4
Y6
CP
Y
5
Y7
VCC1 2 3 4 5 6 7 8 9 10
13
14
15
16
17
18
19
20
P24-1
D24-1 SO24-2 SO24-8
&
E24-1
11 12
21
22
23
24
DIP/SOIC/QSOP/CERPACK
TOP VIEW
OE2
CLR
OE3
EN
IDT54/74FCT821AT/BT/CT, 823/825AT/BT/CT/DT HIGH-PERFORMANCE CMOS BUS INTERFACE REGISTERS MILITARY AND COMMERCIAL TEMPERATURE RANGES
6.21 3
FUNCTION TABLE
(1)
PIN DESCRIPTION
2567 tbl 01
ABSOLUTE MAXIMUM RATINGS
(1)
CAPACITANCE (TA = +25°C, f = 1.0MHz)
Symbol Rating Commercial Military Unit
VTERM
(2)
Terminal Voltage with Respect to GND
–0.5 to +7.0 –0.5 to +7.0 V
VTERM
(3)
Terminal Voltage with Respect to GND
–0.5 to
V
CC +0.5
–0.5 to
VCC +0.5
V
TA Operating
Temperature
0 to +70 –55 to +125 °C
TBIAS Temperature
Under Bias
–55 to +125 –65 to +135 °C
TSTG Storage
Temperature
–55 to +125 –65 to +150 °C
PT Power Dissipation 0.5 0.5 W IOUT DC Output
Current
–60 to +120 –60 to +120 mA
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 V
CC by +0.5V unless otherwise noted.
2. Input and V
CC terminals only.
3. Outputs and I/O terminals only.
NOTE:
1. This parameter is measured at characterization but not tested.
2567 lnk 03
2567 lnk 04
Symbol Parameter
(1)
Conditions Typ. Max. Unit
CIN Input
Capacitance
VIN = 0V 6 10 pF
COUT Output
Capacitance
VOUT = 0V 8 12 pF
Inputs
Internal/ Outputs
OEOECLR
CLRENEN
DI CP QI YI
Function
H H
H H
L L
L
H
↑ ↑
L
H
Z Z
High Z
H
L
L L
X X
X X
X X
L L
Z L
Clear
H
L
H H
H H
X X
XXNC
NCZNC
Hold
H H
L L
H H H H
L L L L
L
H
L
H
↑ ↑ ↑ ↑
L
H
L
H
Z Z L
H
Load
Names I/O Description
DI I The D flip-flop data inputs.
CLR
I When the clear input is LOW and OE is
LOW, the Q
I outputs are LOW. When
the clear input is HIGH, data can be entered into the register.
CP I Clock Pulse for the Register; enters
data into the register on the LOW-to­HIGH transition.
YI O The register 3-state outputs.
EN
I Clock Enable. When the clock enable is
LOW, data on the D
I input is transferred
to the Q
I output on the LOW-to-HIGH
clock transition. When the clock enable is HIGH, the Q
I outputs do not change
state, regardless of the data or clock input transitions.
OE
I Output Control. When the OE input is
HIGH, the Y
I outputs are in the high-
impedance state. When the OE input is LOW, the TRUE register data is present at the Y
I outputs.
NOTE: 2567 tbl 02
1. H = HIGH L = LOW X = Don’t Care NC = No Change = LOW-to-HIGH Transition Z = High Impedance
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