74HCT7403D,512 NXP Semiconductors, 74HCT7403D,512 Datasheet - Page 22

• Manufacturer Part Number: 74HCT7403D,512
• Description: IC FIFO REGISTER 64X4 3ST 16SOIC
• Manufacturer: NXP Semiconductors
• Series: 74HCTr

Specifications of 74HCT7403D,512

• Function: Asynchronous, Synchronous
• Memory Size: 256 (64 x 4)
• Data Rate: 15MHz
• Voltage - Supply: 4.5 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (0.300", 7.5mm Width)
• Logic Family: HCT
• Logical Function: FIFO Register
• Number Of Elements: 1
• Number Of Bits: 4
• Number Of Inputs: 4
• Number Of Outputs: 4
• High Level Output Current: -8mA
• Low Level Output Current: 8mA
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• Output Type: 3-State
• Polarity: Non-Inverting
• Technology: CMOS
• Mounting: Surface Mount
• Pin Count: 16
• Operating Temp Range: -40C to 125C
• Operating Temperature Classification: Automotive
• Quiescent Current: 50uA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Operating Temperature: -
• Access Time: -
• Lead Free Status / Rohs Status: Compliant
• Other names: 74HCT7403D; 74HCT7403D; 933999390512

Philips Semiconductors
Note to Fig.18
The “7403” is easily expanded to increase word length. Composite DIR and DOR flags are formed with the addition of
an AND gate. The basic operation and timing are identical to a single FIFO, with the exception of an added gate delay
on the flags.
September 1993
handbook, full pagewidth
4-Bit x 64-word FIFO register; 3-state
COMPOSITE
DATA INPUT
DATA INPUT
Fig.18 Expanded FIFO for increased word length; 64 words x 10 bits.
FLAG
DIR
MR
SI
4
4
SI
SI
DIR
DIR
MR
MR
D n
D n
7403
7403
22
MGA678
DOR
DOR
Q n
SO
OE
SO
OE
Q n
4
4
SO
OE
DATA OUTPUT
DATA OUTPUT
COMPOSITE
FLAG
DOR
74HC/HCT7403
Product specification