IDT54FCT521CLB Ver la hoja de datos (PDF) - Integrated Device Technology

Número de pieza

componentes Descripción

Lista de partido

IDT54FCT521CLB

FAST CMOS 8-BIT IDENTITY COMPARATOR

Integrated Device Technology 

IDT54/74FCT521/A/B/C FAST CMOS

8-BIT IDENTITY COMPARATOR

MILITARY AND COMMERCIAL TEMPERATURE RANGES

POWER SUPPLY CHARACTERISTICS VLC = 0.2V; VHC = VCC – 0.2V

Symbol

Parameter

Test Conditions(1)

Min. Typ.(2) Max. Unit

ICC

Quiescent Power Supply Current VCC = Max.

VIN ≥ VHC; VIN ≤ VLC

— 0.2 1.5 mA

∆ICC

ICCD

Quiescent Power Supply Current

TTL Inputs HIGH

Dynamic Power Supply Current(4)

VCC = Max.

VIN = 3.4V(3)

VCC = Max.

Outputs Open

One Input Toggling

VIN ≥ VHC

VIN ≤ VLC

— 0.5 2.0 mA

— 0.15 0.25 mA/

MHz

50% Duty Cycle

IC

Total Power Supply Current(5)

VCC = Max.

VIN ≥ VHC

Outputs Open

VIN ≤ VLC (FCT)

— 1.7 4.0 mA

fi = 10MHz

One Bit Toggling

50% Duty Cycle

VIN = 3.4V

VIN = GND

— 2.0 5.0

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. 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.

2604 tbl* 04

SWITCHING CHARACTERISTICS OVER OPERATING RANGE

IDT54/74FCT521

IDT54/74FCT521A

IDT54/74FCT521B

IDT54/74FCT521C

Com'l.

Mil.

Com'l.

Mil.

Com'l.

Mil.

Com'l.

Mil.

Symbol Parameter Condition(1) Min.(2) Max. Min.(2) Max. Min.(2) Max. Min.(2) Max. Min.(2) Max. Min.(2) Max. Min.(2) Max. Min.(2) Max. Unit

tPLH Propagation CL = 50pF

1.5 11.0 1.5 15.0 1.5 7.2 1.5 9.5 1.5 5.5 1.5 7.3 1.5 4.5 1.5 5.1 ns

tPHL Delay

RL = 500Ω

An or Bn to

OA = B

tPLH Propagation

tPHL Delay

IA = B to

1.5 10.0 1.5 9.0 1.5 6.0 1.5 7.8 1.5 4.6 1.5 6.0 1.5 4.1 1.5 4.5 ns

OA = B

NOTES:

1. See test circuit and waveforms.

2. Minimum limits are guaranteed but not tested on Propagation Delays.

2604 tbl* 07

7.16

4

Share Link: