Name: 74F674N
SKU: 74F674N
Price: 25.66954 USD
Availability: InStock

Philips Semiconductors Product specification

74F67416-bit serial/parallel-in, serial-out shift register (3-State)

1989 Feb 05 853–1248 92263

FEATURES

• 16-bit serial I/O shift register

• 16-bit parallel-in/serial-out converter

• Recirculating serial shifting

• Common serial data I/O pin (3-State)

DESCRIPTION

The 74F674 is a 16-bit shift register with serial and parallel load

capability and serial output. A single pin serves alternately as an

input for serial entry or as a 3-State serial output. In the serial out

mode the data recirculates in the register. Chip Select, Read/Write

and Mode inputs provide control flexibility. The 74F674 operates in

one of four modes, as indicated in the Function table.

Hold: A High signal on the Chip Select (CS

) input prevents clocking

and forces the Serial Input/Output (SI/O) 3-State buffer into the high

impedance state.

Serial load: Data present on the SI/O pin shifts into the register on

the falling edge of CP

. Data enters the Q0 position and shifts toward

Q15 on successive clocks.

Serial output: The SI/O 3-State buffer is active and the register

contents are shifted out from Q15 and simultaneously shifted back

into Q0.

Parallel load: Data present on D0–D15 is entered into the register

on the falling edge of CP

. The SI/O 3-State buffer is active and

represents the Q15 output. To prevent false clocking, CP

must be

Low during a Low-to-High transition of CS

PIN CONFIGURATION

241

10 15

D15

D14

D11

D10

SI/O

D13

D12

R/W

SF01188

12 13

GND

TYPE TYPICAL f

MAX

TYPICAL SUPPLY

CURRENT

(TOTAL)

74F674 95MHz 55mA

ORDERING INFORMATION

DESCRIPTION COMMERCIAL RANGE

= 5V ±10%, T

amb

= 0°C to +70°C

24-Pin Plastic Slim DIP

(300mil)

N74F674N

24-Pin Plastic SOL N74F674D

INPUT AND OUTPUT LOADING AND FAN-OUT TABLE

PINS DESCRIPTION

74F(U.L.)

HIGH/LOW

LOAD VALUE

HIGH/LOW

D0–D15 Parallel data inputs 1.0/1.0 20µA/0.6mA

CS Chip Select input (active Low) 1.0/1.0 20µA/0.6mA

CP Clock Pulse input (active falling edge) 1.0/1.0 20µA/0.6mA

M Mode select input 1.0/1.0 20µA/0.6mA

R/W Read/Write input 1.0/1.0 20µA/0.6mA

SI/O

Serial data input or 3.5/1.0 70mA/0.6mA

SI/O

Serial 3-state output 150/40 3.0mA/24mA

NOTE: One (1.0) FAST Unit Load is defined as: 20µA in the High state and 0.6mA in the Low state.

Philips Semiconductors Product specification

74F67416-bit serial/parallel-in, serial-out shift register (3-State)

1989 Feb 05

LOGIC SYMBOL

8910

= Pin 24

GND = Pin 12

SF01189

D0 D1 D4 D5 D6 D7D3D2

11 13 147 16 17 18

D8 D9 D12 D13 D14 D15D11D10

19 20 21 2215 23

R/W

FUNCTION TABLE

CONTROL INPUTS

SI/O OPERATING

CS R/W M CP

SI/O

STATUS

OPERATING

MODE

H X X X High Z Hold

L L X ↓ Data in Serial load

L H L ↓ Data out

Serial output with

recirculation

L H H ↓ Active

Parallel load;

no shifting

H = High voltage level

L = Low voltage level

X = Don’t care

↓ = High-to-Low transition of designed input

LOGIC SYMBOL (IEEE/IEC)

SF01190

SRG16

3, 4D

, 4D

3, 4D

C4(0/1/2)

LOGIC DIAGRAM

= Pin 24

GND = Pin 12

SF01191

D0–D15

Q15

D0–D15 (7–11, 13–23)

SI/O

R/W

Philips Semiconductors Product specification

74F67416-bit serial/parallel-in, serial-out shift register (3-State)

1989 Feb 05

ABSOLUTE MAXIMUM RATINGS

(Operation beyond the limits set forth in this table may impair the useful life of the device.

Unless otherwise noted these limits are over the operating free-air temperature range.)

SYMBOL

PARAMETER RATING UNIT

Supply voltage –0.5 to +7.0 V

Input voltage –0.5 to +7.0 V

Input current –30 to +5.0 mA

OUT

Voltage applied to output in High output state –0.5 to +V

OUT

Current applied to output in Low output state 48 mA

amb

Operating free-air temperature range 0 to +70 °C

stg

Storage temperature –65 to +150 °C

RECOMMENDED OPERATING CONDITIONS

SYMBOL

PARAMETER

LIMITS

UNIT

SYMBOL

PARAMETER

MIN NOM MAX

UNIT

Supply voltage 4.5 5.0 5.5 V

High-level input voltage 2.0 V

Low-level input voltage 0.8 V

Input clamp current –18 mA

High-level output current –3 mA

Low-level output current 24 mA

amb

Operating free-air temperature range 0 70 °C

DC ELECTRICAL CHARACTERISTICS

(Over recommended operating free-air temperature range unless otherwise noted.)

SYMBOL

PARAMETER

TEST CONDITIONS

LIMITS

UNIT

SYMBOL

PARAMETER

TEST

CONDITIONS

MIN TYP

MAX

UNIT

High-level output voltage

= MIN, V

= MAX,

±10%V

2.4 V

eve

age

MIN, V

MAX,

= MIN, I

= MAX

±5%V

2.7 3.3 V

Low-level output voltage

= MIN, V

= MAX,

±10%V

0.35 0.50 V

ow-

eve

age

MIN, V

MAX,

= MIN, I

= MAX

±5%V

0.35 0.50 V

Input clamp voltage V

= MIN, I

= I

–0.73 –1.2 V

Input current at

SI/O only V

= MAX, V

= 5.5V 100 µA

Input current at

maximum input voltage

others V

= MAX, V

= 7.0V 100 µA

High-level input current V

= MAX, V

= 2.7V 20 µA

Low-level input current V

= MAX, V

= 0.5V –0.6 mA

OZH

Off-state output current

High-level voltage applied

SI/O

= MAX, V

= 2.7V 70 µA

OZL

Off-state output current

Low-level voltage applied

SI/O

only

= MAX, V

= 0.5V –600 µA

Short-circuit output current

= MAX –60 –150 mA

Supply current (total) V

= MAX 55 80 mA

NOTES:

1. For conditions shown as MIN or MAX, use the appropriate value under the recommended operating conditions for the applicable type.

2. All typical values are at V

= 5V, T

amb

= 25°C.

3. Not more than one output should be shorted at a time. For testing I

, the use of high-speed test apparatus and/or sample-and-hold

techniques are preferable in order to minimize internal heating and more accurately reflect operational values. Otherwise, prolonged shorting

of a High output may raise the chip temperature well above normal and thereby cause invalid readings in other parameter tests. In any

sequence of parameter tests, I

should be performed last.

Part #	74F674N
Description
Category	IC
Availability	In Stock
Qty	6

Qty	Price
1 - 1	$25.66954
2 - 2	$20.41895
3 - 3	$19.25215
4 - 5	$17.89089
6 +	$15.94623

74F674N

Related Items

Technical Document