TMS44100, TMS44100P, TMS46100, TMS46100P

4194304-WORD BY 1-BIT

DYNAMIC RANDOM-ACCESS MEMORIES

SMHS561A – MARCH 1995 – REVISED JUNE 1995

8

POST OFFICE BOX 1443

capacitance over recommended ranges of supply voltage and operating free-air temperature,

f = 1 MHz (see Note 6)

PARAMETER

MIN

MAX

UNIT

Ci(A)

Input capacitance, A0 – A10

5

pF

Ci(RC)

Input capacitance, CAS and RAS

7

pF

Ci(W)

Input capacitance, W

7

pF

Co

Output capacitance

7

pF

NOTE 6: VCC = 5 V ± .5 V for the TMS44100 devices, VCC = 3.3 V ± 0.3 V for the TMS46100 devices, and the bias on pins under test is 0 V.

switching characteristics over recommended ranges of supply voltage and operating free-air

temperature

PARAMETER

’4x100 - 60

’4x100P - 60

’4x100 - 70

’4x100P - 70

’4x100 - 80

’4x100P - 80

UNIT

MIN

MAX

MIN

MAX

MIN

MAX

tAA

Access time from column address

30

35

40

ns

tCAC

Access time from CAS low

15

18

20

ns

tCPA

Access time from column precharge

35

40

45

ns

tRAC

Access time from RAS low

60

70

80

ns

tCLZ

CAS to output in low impedance

0

0

0

ns

tOFF

Output disable time after CAS high (see Note 7)

0

15

0

18

0

20

ns

NOTE 7: tOFF is specified when the output is no longer driven.