Rainbow-electronics DS25LV02 Manual de usuario descargar pdf (Pagina 3)

DS25LV02: Low-Voltage 1024-Bit EPROM

3 of 17

AC ELECTRICAL CHARACTERISTICS: EPROM PROGRAMMING

(3.0V £ V

£ 5.5V, T

= -30°C to +50°C.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Programming Pulse Width t

(Notes 1, 2, 5, 6) 480 5000

Program Voltage Rise Time t

(Notes 1, 2, 5) 0.5 5.0

Program Voltage Fall Time t

(Notes 1, 2, 5) 0.5 5.0

Programming Current: DQ Pin I

(Notes 2, 5, 7) 6 10 mA

AC ELECTRICAL CHARACTERISTICS: 1-Wire INTERFACE

(2.2V £ V

£ 5.5V, T

= -30°C to +85°C.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Time Slot t

SLOT

60 120

Recovery Time t

REC

Write-0 Low Time t

LOW0

60 120

Write-1 Low Time t

LOW1

1 15

Read-Data Valid t

RDV

Reset-Time High t

RSTH

480

Reset-Time Low t

RSTL

480 960

Presence-Detect High t

PDH

15 60

Presence-Detect Low t

PDL

60 240

Delay to Program Pulse t

Delay to Verify t

DQ Capacitance C

50 pF

Note 1:

All voltages are referenced to V

Note 2:

Programming of the EPROM Data and EPROM Status fields require a limited temperature range of 0°C to 50°C and limited V

voltage range of 3.0V to 5.5V.

Note 3:

Storage for t

EES

at +50°C.

Note 4:

DQ < V

for t > 1.5ms or DQ > V

for t > 1.5ms [1-Wire oscillator shut down].

Note 5:

Programming pulse on DQ pin must be shaped to conform with rise, fall, and width timing specifications. See Figure 7. EPROM

Programming Diagram).

Note 6:

The accumulative duration of all programming pulses for each address must not exceed 5ms.

Note 7:

Specification is guaranteed by design.

1 2 3 4 5 6 7 8 ... 16 17

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