10

AC Electrical Specifications

PARAMETER

SYMBOL

TEST

CONDITIONS

HMU16/HMU17-35

HMU16/HMU17-45

UNITS

MIN

MAX

MIN

MAX

Unclocked Multiply Time

-55

-

70

ns

Clocked Multiply Time

-35

-

45

ns

X, Y, RND Setup Time

15

-

18

-

ns

X, Y, RND Hold Time

2-

2

-

ns

Clock Pulse Width High

10

-

15

-

ns

Clock Pulse Width Low

10

-

15

-

ns

MSPSEL to Product Out

-22

-

25

ns

Output Clock to P

-22

-

25

ns

Output Clock to Y

-22

-

25

ns

Three-State Enable Time

Note 4

-

22

-

25

ns

Three-State Disable Time

-22

-

25

ns

Clock Enable Setup Time

(HMU17 Only)

15

-

15

-

ns

Clock Enable Hold Time

(HMU17 Only)

2-

2

-

ns

Clock Low Hold Time CLKXY

Relative to CLKML

(HMU16 Only)

Note 5

0

-

0

-

ns

Output Rise Time

From 0.8V to 2.0V

-

8

-

8

ns

Output Fall Time

From 2.0V to 0.8V

-

8

-

8

ns

NOTES:

4. Transition is measured at

5. To ensure the correct product is entered in the output registers, new data may not be entered into the input registers before the output registers

have been clocked.

AC Test Circuit

NOTE: Includes Stray and Jig Capacitance.

AC Testing Input, Output Waveforms

NOTE: AC Testing: All parameters tested as per test circuit. Input

rise and fall times are driven at 1ns/V.

DUT

0.3V

0V

1.5V

1.5V

HMU16, HMU17