54F407DM NSC [National Semiconductor], 54F407DM Datasheet

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54F407DM

Manufacturer Part Number
54F407DM
Description
DATA ACCESS REGISTER
Manufacturer
NSC [National Semiconductor]
Datasheet
C 1995 National Semiconductor Corporation
54F407
Data Access Register
General Description
The ’F407 Data Access Register (DAR) performs memory
address arithmetic for RAM resident stack applications It
contains three 4-bit registers intended for Program Counter
(R
’F407 implements 16 instructions which allow either pre- or
post-decrement increment and register-to-register transfer
in a single clock cycle It is expandable in 4-bit increments
and can operate at a 30 MHz microinstruction rate on a
16-bit word The TRI-STATE outputs are provided for bus-
oriented applications The ’F407 is fully compatible with all
TTL families
Logic Symbol
TRI-STATE is a registered trademark of National Semiconductor Corporation
0
) Stack Pointer (R
Note 1 Military grade device with environmental and burn-in processing Use suffix
54F407DM (Note 1)
54F407SDM (Note 1)
54F407FM (Note 1)
54F407FM (Note 1)
1
) and Operand Address (R
Military
TL F 9537–3
TL F 9537
Package
J24A
J24F
W24C
E28A
Number
for DIP and Flatpak
2
Pin Assignment
) The
24-Lead Ceramic Dual-In-Line
24-Lead (0 300 Wide) Ceramic Dual-In-Line
24-Lead Cerpack
28-Lead Ceramic Leadless Chip Carrier Type C
Features
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Connection Diagrams
High-speed greater than a 30 MHz microinstruction
rate
Three 4-bit registers
16 instructions for register manipulation
Two separate output ports one transparent
Relative addressing capability
TRI-STATE Outputs
Optional pre- or post- arithmetic
Expandable in multiples of four bits
24-pin slim package
9407 replacement
Package Description
TL F 9537 – 1
e
DMQB FMQB and LMQB
Pin Assignment
for LCC
RRD-B30M105 Printed in U S A
December 1994
TL F 9537 – 2

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54F407DM Summary of contents

Page 1

... MHz microinstruction rate on a 16-bit word The TRI-STATE outputs are provided for bus- oriented applications The ’F407 is fully compatible with all TTL families Military 54F407DM (Note 1) 54F407SDM (Note 1) 54F407FM (Note 1) 54F407FM (Note 1) Note 1 Military grade device with environmental and burn-in processing Use suffix Logic Symbol TL F 9537– ...

Page 2

Unit Loading Fan Out Pin Names Description D –D Data Inputs (Active LOW –I Instruction Word Inputs Carry Input (Active LOW) CO Carry Output (Active LOW) CP Clock Input (L-H Edge-Triggered) EX Execute Input ...

Page 3

Block Diagram Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays 9537 – 4 ...

Page 4

Timing Diagrams EO LOW e x FIGURE 407-a EO LOW LOW I HIGH FIGURE 407-d EO LOW e x FIGURE 407 9537–7 FIGURE 407-c EO LOW I HIGH ...

Page 5

Absolute Maximum Ratings If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Storage Temperature b Ambient Temperature under Bias b Junction Temperature under Bias b V Pin Potential to CC ...

Page 6

AC Electrical Characteristics Symbol Parameter t Propagation Delay PLH (Note 1) PHL n t Propagation Delay I PLH t I – –X PHL Propagation Delay I PLH t I ...

Page 7

AC Electrical Characteristics Symbol Parameter t Clock Period cw t (H) Setup Time HIGH or LOW s t (L) I –I to Negative-Going (H) Hold Time HIGH or LOW h t (L) I –I to ...

Page 8

Physical Dimensions inches (millimeters) 28-Lead Ceramic Leadless Chip Carrier (L) 24-Lead Ceramic Dual-In-Line Package (D) NS Package Number E28A NS Package Number J24A 8 ...

Page 9

Physical Dimensions inches (millimeters) (Continued) 24-Lead Slim (0 300 Wide) Ceramic Dual-In-Line Package (SD) NS Package Number J24F 9 ...

Page 10

Physical Dimensions inches (millimeters) (Continued) LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMICONDUCTOR CORPORATION As used herein 1 ...

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