NXP Semiconductors 74HC7403
The 74HC7403; 74HCT7403 is an expandable, First-In First-Out (FIFO) memory organized as 64 words by 4 bits. With separate controls for shift-in (SI) and shift-out (SO), reading and writing operations are completely independent, allowing synchronous and asynchronous data transfers.FEATURES AND BENEFITS
● Synchronous or asynchronous operation● 30 MHz (typical) shift-in and shift-out rates
● Readily expandable in word and bit dimensions
● Pinning arranged for easy board layout: input pins directly opposite output pins
● Input levels:
● For 74HC7403: CMOS level
● For 74HCT7403: TTL level
● 3-state outputs
● Complies with JEDEC standard JESD7A
● ESD protection:
● HBM JESD22-A114F exceeds 2 000 V
● MM JESD22-A115-A exceeds 200 V
● Multiple package options
● Specified from 40 C to +85 C and from 40 C to +125 C 3.
APPLICATIONS
● High-speed disc or tape controller● Communications buffer NXP Semiconductors 4. Ordering information Table 1. Ordering information Type number Package Temperature range Name 74HC7403N 40 C to +125 C DIP16 74HCT7403N 74HC7403D 40 C to +125 C SO16 74HCT7403D 5. Functional diagram 74HC7403; 74HCT7403 4-bit x 64-word FIFO register; 3-state
DESCRIPTION
plastic dual in-line package; 16 leads (300 mil) plastic small outline package; 16 leads; body width 3.9 mm Version SOT38-4 SOT109-1 2( ' 4 ' 4 ' 4 ' 4 6, '25 62 ',5 05 PJD Fig 1.