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Número de pieza | IDT54FCT162823BTPVB | |
Descripción | FAST CMOS 18-BIT REGISTER | |
Fabricantes | Integrated Device Technology | |
Logotipo | ![]() |
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Integrated Device Technology, Inc.
FAST CMOS 18-BIT
REGISTER
IDT54/74FCT16823AT/BT/CT/ET
IDT54/74FCT162823AT/BT/CT/ET
FEATURES:
• Common features:
– 0.5 MICRON CMOS Technology
– High-speed, low-power CMOS replacement for
ABT functions
– Typical tSK(o) (Output Skew) < 250ps
– Low input and output leakage ≤1µA (max.)
– ESD > 2000V per MIL-STD-883, Method 3015;
> 200V using machine model (C = 200pF, R = 0)
– Packages include 25 mil pitch SSOP, 19.6 mil pitch
TSSOP, 15.7 mil pitch TVSOP and 25 mil pitch Cerpack
– Extended commercial range of -40°C to +85°C
– VCC = 5V ±10%
• Features for FCT16823AT/BT/CT/ET:
– High drive outputs (-32mA IOH, 64mA IOL)
– Power off disable outputs permit “live insertion”
– Typical VOLP (Output Ground Bounce) < 1.0V at
VCC = 5V, TA = 25°C
• Features for FCT162823AT/BT/CT/ET:
– Balanced Output Drivers: ±24mA (commercial),
±16mA (military)
– Reduced system switching noise
– Typical VOLP (Output Ground Bounce) < 0.6V at
VCC = 5V,TA = 25°C
DESCRIPTION:
The FCT16823AT/BT/CT/ET and FCT162823AT/BT/CT/
ET 18-bit bus interface registers are built using advanced,
dual metal CMOS technology. These high-speed, low-power
registers with clock enable (xCLKEN) and clear (xCLR) con-
trols are ideal for parity bus interfacing in high-performance
synchronous systems. The control inputs are organized to
operate the device as two 9-bit registers or one 18-bit register.
Flow-through organization of signal pins simplifies layout. All
inputs are designed with hysteresis for improved noise mar-
gin.
The FCT16823AT/BT/CT/ET are ideally suited for driving
high-capacitance loads and low-impedance backplanes. The
output buffers are designed with power off disable capability
to allow "live insertion" of boards when used as backplane
drivers.
The FCT162823AT/BT/CT/ET have balanced output drive
with current limiting resistors. This offers low ground bounce,
minimal undershoot, and controlled output fall times – reduc-
ing the need for external series terminating resistors. The
FCT162823AT/BT/CT/ET are plug-in replacements for the
FCT16823AT/BT/CT/ET and ABT16823 for on-board inter-
face applications.
FUNCTIONAL BLOCK DIAGRAM
1OE
1CLR
1CLK
1CLKEN
1D1
R
C
D
2OE
2CLR
2CLK
2CLKEN
1Q1
2D1
R
C
D 2Q1
TO 8 OTHER CHANNELS
2772 drw 01
TO 8 OTHER CHANNELS 2772 drw 02
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
©1996 Integrated Device Technology, Inc.
5.16
AUGUST 1996
DSC-2772/8
1
1 page ![]() ![]() IDT54/74FCT16823AT/BT/CT/ET, 162823AT/BT/CT/ET
FAST CMOS 18-BIT REGISTER
MILITARY AND COMMERCIAL TEMPERATURE RANGES
POWER SUPPLY CHARACTERISTICS
Symbol
∆ICC
ICCD
Parameter
Quiescent Power Supply Current
TTL Inputs HIGH
Dynamic Power Supply Current(4)
Test Conditions(1)
VCC = Max.
VIN = 3.4V(3)
VCC = Max.
Outputs Open
xOE = xCLKEN = GND
One Input Toggling
50% Duty Cycle
VIN = VCC
VIN = GND
Min. Typ.(2) Max. Unit
— 0.5 1.5 mA
— 75 120 µA/
MHz
IC
Total Power Supply Current(6)
VCC = Max.
VIN = VCC
Outputs Open
VIN = GND
fCP= 10MHz
50% Duty Cycle
— 0.8 1.7 mA
xOE = xCLKEN = GND
at fi = 5MHz
50% Duty Cycle
One Bit Toggling
VIN = 3.4V
VIN = GND
— 1.3 3.2
VCC = Max.
Outputs Open
fCP= 10MHz
50% Duty Cycle
VIN = VCC
VIN = GND
— 4.2 7.1(5)
xOE = xCLKEN = GND
at fi = 2.5MHz
50% Duty Cycle
VIN = 3.4V
VIN = GND
— 9.2 22.1(5)
Eighteen Bits Toggling
NOTES:
1. For conditions shown as Max. or Min., 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 the ICC formula. These limits are guaranteed but not tested.
6. IC = IQUIESCENT + IINPUTS + IDYNAMIC
IC = ICC + ∆ICC DHNT + ICCD (fCPNCP/2 + fiNi)
ICC = Quiescent Current (ICCL, ICCH and ICCZ)
∆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)
NCP = Number of Clock Inputs at fCP
fi = Input Frequency
Ni = Number of Inputs at fi
2772 tbl 08
5.16 5
5 Page ![]() |
Páginas | Total 9 Páginas | |
PDF Descargar | [ Datasheet IDT54FCT162823BTPVB.PDF ] |
Número de pieza | Descripción | Fabricantes |
IDT54FCT162823BTPV | FAST CMOS 18-BIT REGISTER | ![]() Integrated Device Technology |
IDT54FCT162823BTPVB | FAST CMOS 18-BIT REGISTER | ![]() Integrated Device Technology |
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