PI74FCT377TSX [PERICOM]

D Flip-Flop, FCT Series, 8-Func, 1-Bit, True Output, CMOS, PDSO20, 0.300 INCH, PLASTIC, SOIC-20;


型号：	PI74FCT377TSX
厂家：	PERICOM SEMICONDUCTOR CORPORATION
描述：	D Flip-Flop, FCT Series, 8-Func, 1-Bit, True Output, CMOS, PDSO20, 0.300 INCH, PLASTIC, SOIC-20 触发器时钟
文件：	总3页 (文件大小：41K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

PI74FCT377T

OCTAL D FLIP-FLOP with CLOCK ENABLE

PI74FCT377T

Fast CMOS Octal D Flip-Flop

with Clock Enable

Product Description:

PericomSemiconductor’sPI74FCTseriesoflogiccircuitsarepro-

ducedintheCompany’sadvanced 0.6/0.8micron CMOStechnology,

achieving industry leading speed grades.

ProductFeatures:

• ThePI74FCT377TispincompatiblewithbipolarFAST™

Series at a higher speed and lower power

consumption

• TTL input and output levels

• OctalDflip-flopswithClockEnable

• Extremelylowstaticpower

• Hysteresis on all inputs

• Industrial operating temperature range: –40°C to +85°C

• Packagesavailable:

The PI74FCT377T is an 8-bit wide octal designed with eight edge-

triggered D-type flip-flops with individual D inputs and O outputs.

When Clock Enable (CE) is LOW, the common buffered Clock

(CP)loadsallflip-flopssimultaneously. Theregisterisfullyedge-

triggered. D input state, one setup time before the LOW-to-HIGH

clock transition, is transferred to the corresponding flip-flop’s O

output. The CE input must be stable only one setup time prior to

the LOW-to-HIGH transition for predictable operation.

– 20-pin173milwideplasticTSSOP(L)

– 20-pin300milwideplasticDIP(P)

– 20-pin150milwideplasticQSOP(Q)

– 20-pin150milwideplasticTQSOP(R)

– 20-pin300milwideplasticSOIC(S)

Logic Block Diagram

Truth Table⁽¹⁾

Product Pin Configuration

Product Pin Description

Inputs

Outputs

Pin Name

Description

20 Vcc

Mode

Clock Enable (Active LOW)

Clock Pulse Input

Data Inputs

Load "1"

Load "0"

Hold

↑

20-PIN

L20

P20

Q20

R20

S20

D0-D7

O0-O7

GND

VCC

↑

Data Outputs

Ground

(Do Nothing)

Power

1. H = HIGH Voltage Level

h = HIGH Voltage Level one setup time

prior to the LOW-to-HIGH Clock

Transition

GND

L = LOW Voltage Level

l = LOW Voltage Level one setup time

prior to the LOW-to-HIGH Clock

Transition

X = Don't Care

NC = No Change

↑ = LOW-to-HIGH Clock Transition

PS2017A 03/11/96

PI74FCT377T

OCTAL D FLIP-FLOP with CLOCK ENABLE

Maximum Ratings

(Above which the useful life may be impaired. For user guidelines, not tested.)

Note:

StorageTemperature .................................................................... –65°Cto+150°C

Ambient Temperature with Power Applied .....................................-40°Cto+85°C

Supply Voltage to Ground Potential (Inputs & Vcc Only) .............. –0.5Vto+7.0V

Supply Voltage to Ground Potential (Outputs & D/O Only) ........... –0.5Vto+7.0V

DC Input Voltage ............................................................................ –0.5Vto+7.0V

DC Output Current ..................................................................................... 120mA

Power Dissipation ..........................................................................................0.5W

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 = 5V ± 5%)

Parameters Description

TestConditions⁽¹⁾Min. Typ⁽²⁾Max. Units

Output HIGH Voltage VCC = Min., VIN = VIH or VIL

VOH

VOL

VIH

VIL

IIH

IOH = –15.0 mA

IOL = 64 mA

2.4

3.0

0.3

Output LOW Current

Input HIGH Voltage

Input LOW Voltage

Input HIGH Current

Input LOW Current

VCC = Min., VIN = VIH or VIL

0.55

Guaranteed Logic HIGH Level

Guaranteed Logic LOW Level

VCC = Max.

2.0

0.8

VIN =VCC

µA

IIL

VCC = Max.

VIN =GND

–1

VIK

IOS

Clamp Diode Voltage VCC = Min., IIN = –18 mA

–0.7

–120

—

–1.2

Short Circuit Current

Power Down Disable

Input Hysteresis

VCC =Max.⁽³⁾,VOUT =GND

–60

—

µA

IOFF

VCC =GND,VOUT =4.5V

100

200

Capacitance (TA = 25°C, f = 1 MHz)

Parameters⁽⁴⁾

Description

Test Conditions

VIN = 0V

Typ

Max.

Units

CIN

Input Capacitance

Output Capacitance

COUT

VOUT = 0V

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.

PS2017A 03/11/96

PI74FCT377T

OCTAL D FLIP-FLOP with CLOCK ENABLE

Power Supply Characteristics

Parameters Description

Test Conditions⁽¹⁾

Min. Typ⁽²⁾Max. Units

I^CC

Quiescent Power

Supply Current

VCC = Max.

VIN = GND

or VCC

0.1

500

µA

∆ICC

ICCD

Supply Current per

Input @ TTL HIGH

VIN = 3.4V⁽³⁾

0.5

2.0

Supply Current per

Input per MHz⁽⁴⁾

VCC = Max., Outputs Open

CE = GND

VIN = VCC

VIN = GND

0.15

0.25

mA/

MHz

One Input Toggling

50% Duty Cycle

Total Power Supply

Current⁽⁶⁾

VCC = Max., Outputs Open

fCP = 10 MHZ, 50% Duty Cycle

CE = GND

50% Duty Cycle

One Bit toggling at fI = 5 MHZ

VIN = VCC

VIN = GND

VIN = 3.4V

V^IN= GND

1.57

3.5⁽⁵⁾

2.0

3.8

5.5⁽⁵⁾

7.3⁽⁵⁾

VCC = Max., Outputs Open

fCP = 10 MHZ, 50% Duty Cycle

CE = GND

VIN = VCC

VIN = GND

VIN = 3.4V

Eight Bits toggling at f^I= 2.5 MHZ VIN = GND

6.0

16.3⁽⁵⁾

50% Duty Cycle

Notes:

1. For conditions shown as Max. or Min., 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 (V^IN= 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. I^C=IQUIESCENT + IINPUTS + IDYNAMIC

IC = ICC + ∆ICC DHNT + ICCD (fCP/2 + fINI)

I^CC= Quiescent Current

∆ICC = Power Supply Current for a TTL High Input (VIN = 3.4V)

D^H= Duty Cycle for TTL Inputs High

N^T= Number of TTL Inputs at DH

ICCD = Dynamic Current Caused by an Input Transition Pair (HLH or LHL)

f^CP= Clock Frequency for Register Devices (Zero for Non-Register Devices)

f^I= Input Frequency

N^I= Number of Inputs at fI (All currents are in milliamps and all frequencies are in megahertz.)

Switching Characteristics over Operating Range

377T

Com.

377AT

Com.

377CT

Com.

377DT

Com.

Parameters

Description

Conditions⁽¹⁾

Min

Max

Min

Max

Min

Max

Min

Max

Unit

PLH

PHL

PropagationDelay

= 50 pF

2.0

13.0

2.0

7.2

—

2.0

5.2

—

2.0

4.5

—

CP to O

= 500Ω

Setup Time, HIGH or LOW

Dn to CP

2.5

2.0

4.0

1.5

7.0

—

2.0

1.5

3.5

1.5

6.0

2.0

1.5

3.5

1.5

6.0

2.0

1.5

2.0

1.5

3.0

Hold Time, HIGH or LOW

Dn to CP

Setup Time HIGH or LOW

CE to CP

Hold Time HIGH or LOW

CE to CP

Clock Pulse Width⁽³⁾

HIGH or LOW

Notes:

1. See test circuit and wave forms.

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

3. This parameter guaranteed but not production tested.

PS2017A 03/11/96

PI74FCT377TSX [PERICOM]

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