I2C Mode Timi" />
參數(shù)資料
型號(hào): ADM00317
廠商: Microchip Technology
文件頁(yè)數(shù): 67/86頁(yè)
文件大?。?/td> 0K
描述: BOARD DAUGHTER MCP4706/16/26
標(biāo)準(zhǔn)包裝: 1
DAC 的數(shù)量: 3 個(gè),每 IC 1 個(gè)
位數(shù): 8,10,12
設(shè)置時(shí)間: 6µs
DAC 型: 電壓
已供物品: 子板
已用 IC / 零件: MCP4706,MCP4716,MCP4726
2011-2012 Microchip Technology Inc.
DS22272C-page 7
MCP4706/4716/4726
1.1
I2C Mode Timing Waveforms and Requirements
FIGURE 1-1:
Power-On and Brown-Out Reset Waveforms.
FIGURE 1-2:
I2C Power-Down Command Timing.
TABLE 1-1:
RESET TIMING
Timing Characteristics
Standard Operating Conditions (unless otherwise specified)
Operating Temperature
-40°C
≤ T
A ≤ +125°C (extended)
All parameters apply across the specified operating ranges unless noted.
VDD = +2.7V to 5.5V, 5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ devices.
Typical specifications represent values for VDD = 5.5V, TA = +25°C.
Parameters
Sym
Min
Typ
Max
Units
Conditions
Power-Up Reset
Delay
tPORD
60
s
Monitor ACK bit response to ensure device
responds to command.
Brown-Out Reset
Delay
tBORD
—1
s
VDD transitions from VDD(MIN) → > VPOR
VOUT driven to VOUT disabled
Power-Down
Disable Time Delay
TPDD
—2.5
s
VDD = 5V
PD1:PD0
→ 00 (from ‘01’, ‘10’, or ‘11’),
from falling edge SCL at end of ACK bit.
—5
s
VDD = 3V
PD1:PD0
→ 00 (from ‘01’, ‘10’, or ‘11’),
from falling edge SCL at end of ACK bit.
Power-Down Enable
Time Delay
TPDE
10.5
s
PD1:PD0
→ 01, ‘10’, or ‘11’ (from ‘00’),
from falling edge SCL at end of ACK bit.
VDD
SDA
tPORD
tBORD
VOUT
SCL
VIH
VPOR (VBOR)
VOUT pulled down by internal
500 k
Ω (typical) resistor
I2C Interface is operational
SDA
SCL
ACK
Stop
Start
ACK
VOUT
tPDE
tPDD
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