EP610DMSLASHB datasheet(8/9 Pages) ROCHESTER

8 / 9 page

EP610

Specification Number EP610-CI (AT) REV -

Page 8 of 9

AC Operating Conditions: EP610-XX/B Note (1)

Symbol

Parameter

Conditions

Min

Max

Unit

tPD1

Input to non-registered output

C1 = 35 pF Notes (2), (3)

tPD2

I/O input to non-registered output

tPZX

Input to output enable

tPXZ

Input to output disable

C1 = 5 pF Notes (2), (3), (4), (5)

tCLR

Asynchronous output clear time

C1 = 35 pF Notes (2), (3)

fMAX

Maximum clock frequency

Note (2), (6), (7)

37.0

MHz

tSU

Global clock input setup time

Note (2), (3)

Global clock input hold time

Note (3)

tCH

Global clock high time

Note (4)

tCL

Global clock low time

Note (4)

tCO1

Global clock to output delay

tCNT

Global clock minimum period

Note (4), (8)

fCNT

Global clock internal maximum frequency

Note (8)

28.5

MHz

tASU

Array clock input setup time

Notes (2), (3), (4)

tAH

Array clock input hold time

Notes (2), (3), (4)

tACH

Array clock high time

Notes (3), (4)

tACL

Array clock low time

Notes (3), (4)

tACO1

Array clock to output delay

Notes (2), (3)

tACNT

Array clock minimum period

Notes (4), (8)

fACNT

Array clock internal maximum frequency

Notes (4), (8)

28.6

MHz

Notes to tables:

(1) Screening and characterization of AC delay parameters are conducted at 10 MHz or less.

Operating conditions: VCC = 5 V ± 10%, TC = -55° C to 125° C for military use.

(2) All array-dependent delays are specified for an XOR pattern. This pattern includes two product terms and two

pure inputs; all other product terms in the macrocell are held low by one EPROM cell. Other patterns may result

in longer delays. Delays for patterns involving only one product term (such as tPXZ ) are specified for an XOR

pattern in which only one pure input switches at a time.

(3) When the Turbo Bit is not set (non-turbo mode), a non-turbo adder of 30 ns (maximum) is added to this

parameter to determine worst-case timing. Parameters may not be tested in non-turbo mode, but are

guaranteed to the limits specified. Devices operating in non-turbo mode require one input or I/O transition to

guarantee that the device will enter the correct power-up state.

(4) These parameters may not be tested, but are guaranteed to the limits specified in the table under “Absolute

Maximum Ratings” on page 3.

(5) Not tested directly, but guaranteed by testing tPD.

(6) The fMAX values represent the highest frequency for pipelined data.

(7) Not tested directly, but derived from tSU.

(8) Specified with device programmed as a 16-bit counter with no output loading.

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