MAX6875 データシートの表示（PDF） - Maxim Integrated

部品番号

コンポーネント説明

メーカー

MAX6875

EEPROM-Programmable, Hex/Quad, Power-Supply Sequencers/Supervisors

Maxim Integrated 

EEPROM-Programmable, Hex/Quad,

Power-Supply Sequencers/Supervisors

TIMING CHARACTERISTICS

(IN1 = GND, VIN2–VIN6 = +2.7V to +5.5V, GPI_ = GND, MARGIN = MR = DBP, TA = -40°C to +85°C, unless otherwise noted. Typical

values are at TA = +25°C.) (Notes 1, 2)

PARAMETER

TIMING CHARACTERISTICS (Figure 2)

Serial Clock Frequency

Clock Low Period

Clock High Period

Bus-Free Time

START Setup Time

START Hold Time

STOP Setup Time

Data-In Setup Time

Data-In Hold Time

SYMBOL

fSCL

tLOW

tHIGH

tBUF

tSU:STA

tHD:STA

tSU:STO

tSU:DAT

tHD:DAT

CONDITIONS

MIN TYP MAX UNITS

400

kHz

1.3

µs

0.6

µs

1.3

µs

0.6

µs

0.6

µs

0.6

µs

100

ns

0

900

ns

Receive SCL/SDA Minimum Rise Time

tR (Note 4)

20 +

0.1 x

ns

CBUS

Receive SCL/SDA Maximum Rise Time

tR (Note 4)

300

ns

Receive SCL/SDA Minimum Fall Time

tF

(Note 4)

20 +

0.1 x

ns

CBUS

Receive SCL/SDA Maximum Fall Time

Transmit SDA Fall Time

tF

(Note 4)

tF

CBUS = 400pF

300

ns

20 +

0.1 x

CBUS

300

ns

Pulse Width of Spike Suppressed

EEPROM Byte Write Cycle Time

tSP (Note 5)

tWR (Note 6)

50

ns

11

ms

Note 1: Specifications guaranteed for the stated global conditions. The device also meets the parameters specified when 0 < VIN1

< +6.5V, and at least one of VIN3–VIN6 is between +2.7V and +5.5V, while the remaining VIN3–VIN6 are between 0 and

+5.5V.

Note 2: Device may be supplied from any one of IN_, except IN2 and IN6.

Note 3: The internal supply voltage, measured at ABP, equals the maximum of IN3–IN5 if VIN1 = 0, or equals +5.4V if VIN1 > +6.5V.

For +4V < VIN1 < +6.5V and VIN3–VIN5 > +2.7V, the input that powers the device cannot be determined.

Note 4: CBUS = total capacitance of one bus line in pF. Rise and fall times are measured between 0.1 x VBUS and 0.9 x VBUS.

Note 5: Input filters on SDA, SCL, A0, and A1 suppress noise spikes < 50ns.

Note 6: An additional cycle is required when writing to configuration memory for the first time.

_______________________________________________________________________________________ 5

Share Link: