MAX7651 데이터 시트보기 (PDF) - Maxim Integrated

부품명

상세내역

제조사

MAX7651

Flash Programmable 12-Bit Integrated Data-Acquisition Systems

Maxim Integrated 

Flash Programmable 12-Bit Integrated

Data-Acquisition Systems

TIMING CHARACTERISTICS (continued)

(MAX7651: AVDD = VPWMV = DVDD = VREF+ = +4.5 to +5.5V, VREF- = 0, fXTAL = 12MHz. MAX7652: AVDD = VPWMV = DVDD =

+2.7V to +3.6V, VREF+ = +2.5V, VREF- = 0, ACOM = AVDD/2, fXTAL = 12MHz. TA = TMIN to TMAX, unless otherwise noted. Typical

values are at TA = +25°C.) (Figure 3)

PARAMETER

Data Valid to WR Transition

SYMBOL

tQVWX

tMCS = 0

tMCS > 0

CONDITIONS

MIN

-9

tCLCL

- 12

TYP

MAX UNITS

ns

Data Valid Before WR High

tQVWH

tMCS = 0

tMCS > 0

2tCLCL

- 20

ns

tMCS

- 30

Data Hold After WR High

tWHQX

tMCS = 0

tMCS > 0

tCLCL

- 18

ns

2tCLCL

- 18

RD Low to Address Float

tRLAZ

0

ns

RD or WR High to ALE High

tWHLH

tMCS = 0

tMCS > 0

0

tCLCL

-5

10

ns

tCLCL

+ 11

SERIAL PORT TIMING CHARACTERISTICS

Serial Port Clock Cycle

Time

tXLXL

SM2 = 0 (12 clocks/cycle)

SM2 = 1 (4 clocks/cycle)

Output Data Setup to Clock

Rising Edge

tQVXH

SM2 = 0 (12 clocks/cycle)

SM2 = 1 (4 clocks/cycle)

Output Data Hold after

Clock Rising Edge

tXHQX

SM2 = 0 (12 clocks/cycle)

SM2 = 1 (4 clocks/cycle)

Input Data Hold after Clock

Rising Edge

tXHDX

SM2 = 0 (12 clocks/cycle)

SM2 = 1 (4 clocks/cycle)

Clock Rising Edge to Input

Data Valid

tXHDV

SM2 = 0 (12 clocks/cycle)

SM2 = 1 (4 clocks/cycle)

12 tCLCL

ns

4 tCLCL

10 tCLCL

ns

3 tCLCL

2 tCLCL

ns

tCLCL

tCLCL

ns

tCLCL

11tCLCL

ns

3tCLCL

Note 1: Relative accuracy is the deviation of the analog value at any code from its theoretical value after the offset and gain errors

have been nullified.

Note 2: AVDD = +5.0V, (VREF+) - (VREF-) = +5.0V or AVDD = +3.0V, (VREF+) - (VREF-) = +2.5V.

Note 3: Ground at “ON” channel; 10kHz sine-wave applied to all “off” channels.

Note 4: ALE and PSEN are in reset cycle.

Note 5: All digital inputs are at DGND or DVDD. fXTAL = 0.

Note 6: Table 1. Data Memory Stretch Values.

Note 7: The minimum frequency when writing to the internal flash is 4MHz.

_______________________________________________________________________________________ 7

Share Link: