MCP48CMB21 datasheet(17/106 Pages) MICROCHIP

17 / 106 page

 2019 Microchip Technology Inc.

DS20006160A-page 17

MCP48CXBXX

1.1.3

RESET AND POWER-DOWN TIMING

FIGURE 1-3:

Power-on and Brown-out Reset Waveforms.

FIGURE 1-4:

SPI Power-Down Waveforms.

VDD

tPOR2SIA = tPOR2OD

tBORD

VOUT

VBOR

VOUT at High Z

SPI Interface is operational

VPOR

24th bit

SCK

VOUT

tPDD

tPDE

(Write

command)

1st bit

(Next

command)

24th bit

(Write

command)

TABLE 1-3:

RESET AND POWER-DOWN TIMING

Timing Characteristics

Standard Operating Conditions (unless otherwise specified):

Operating Temperature: -40°C

 TA  +125°C (Extended)

All parameters apply across the specified operating ranges unless noted.

VDD = +2.7V to 5.5V, VSS =0V, RL =2 k from VOUT to GND, CL = 100 pF.

Typical specifications represent values for VDD =5.5V, TA =+25°C.

Parameters

Sym.

Min. Typ.

Max. Units

Conditions

Power-on Reset Delay

(Note 1)

tPOR2SIA ——

130

µs

Single VDD transitions from VDD(MIN)  > VPOR

VOUT disabled to VOUT driven

——

145

Dual

Brown-out Reset Delay

tBORD

—30

—

µs

VDD transitions from VDD(normal operation) <

VBOR

VOUT driven to VOUT disabled

Power-Down Output

Enable Time Delay

TPDE

—

1.5

—

µs

PDxB:PDxA = ‘11’, ‘10’, or ‘01’  “00” started from

the rising edge of the 24th SCK clock cycle;

Volatile DAC Register = FFFh, VOUT =10mV;

VOUT not connected.

Power-Down Output

Disable Time Delay

TPDD

—

0.025

—

µs

PDxB:PDxA = “00”  ‘11’, ‘10’, or ‘01’ started from

the rising edge of the 24th SCK clock cycle;

VOUT =VOUT -10 mV;

VOUT not connected.

Note 1:

This parameter is ensured by characterization.

MCP48CMB21 Datasheet(PDF) 17 Page - Microchip Technology

MCP48CMB21 Datasheet(HTML) 17 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL