Aeroflex Circuit Technology

SCD3369-1 REV C 5/31/00 Plainview NY (516) 694-6700

9

Capacitance

†

(f = 1MHz, Tc = 25°C)

Symbol

Parameter

Min

Max

Units

Input Capacitance, CLK Input

50

pF

Input Capacitance, Address and Control Inputs: A0-A11, CS, DQMx, RAS, CAS, WE

40

pF

Input Capacitance, CKE Input

50

pF

Output Capacitance

20

pF

†

Parameters Guaranteed but not tested

AC Timing

†‡

(Vcc = 3.3V ±0.3V, Tc = -55°C to +110°C, See Note 4)

Parameter

Symbol

Test Conditions

Min

Max

Units

Cycle time, CLK

CAS latency = 2

20

ns

Pulse duration, CLK high

6

ns

Pulse duration, CLK low

6

ns

Access time, CLK high to data out (see Note 1)

CAS latency = 2

13

ns

Hold time, CLK high to data out

1

ns

Setup time, address, control, and data input

5

ns

Hold time, address, control, and data input

3

ns

Delay time, ACTV command to DEAC or DCAB

command

72

100000

ns

Delay time, ACTV or REFR to ACTV, MRS or

REFR command

108

ns

Delay time ACTV command to READ, READ-P,

WRT, or WRT-P command (see Note 2)

30

ns

Delay time, DEAC or DCAB command to ACTV,

MRS or REFR command

36

ns

Delay time, ACTV command in one bank to

ACTV command in the other bank

24

ns

Delay time, MRS command to ACTV, MRS or

REFR command

30

ns

Final data out of READ-P operation to ACTV,

MRS or REFR command

Min

(see Note 3)

ns

Final data in of WRT-P operation to ACTV, MRS

or REFR command

60

ns