4

HT574

READ MODE AC TIMING CHARACTERISTICS

Symbol

Parameter

Conditions (1)

Typical

Min

Max

Units

tDD

Access Time from CE

150

ns

tHD

Data Valid after CE Low

25

ns

tHL

Output Float Delay

150

ns

tSSR

NCS to CE Setup

0

50

ns

tSRR

R_NC to CE Setup

0

0

ns

tSAR

Ao to CE Setup

50

ns

tHSR

NCS Valid after CE Low

0

0

ns

tHRR

R_NC High after CE Low

0

0

ns

tHAR

Ao Valid after CE Low

50

ns

tHS

STS Delay after Data Valid

300

1000

ns

DIGITAL CHARACTERISTICS

Parameter

Conditions

Typical

Min

Max

Units

Logic Inputs

(CE, NCS, R_NC, Ao, 12_N8)

Logic "1"

2.4

5.5

V

Logic "0"

-0.5

+0.8

V

Current

0 to +5.5V input

±0.01

+5

µA

Capacitance

5

pF

Logic Outputs (DB11-DBO, STS)

Logic "0"

(ISink = 1.6mA)

+0.4

V

Logic "1"

(ISource = 500

µA)

+2.4

V

Leakage

(High Z state, DB11-DBO only)

±0.1

-5

+5

µA

Capacitance

5

pF

(1) Time is measured from 50% level of digital transitions. Tested with a 100pF and 3k

Ω load for high impedance to drive and

tested with 10pF and 3k

Ω load for drive to high impedance.

Temperature ranges = -55 to +225

°C, VDD = 10.0V ±10%

Typical @ +25

°C, Vlogic = +5V, unless otherwise specified

Temperature ranges = -55 to +225

°C, VDD = 10.0V ±10%

Typical @ +25

°C, Vlogic = +5V, unless otherwise specified