MCP4706 Datasheet, PDF (8/86 Pages) Microchip Technology – 8-/10-/12-Bit Voltage Output Digital-to-Analog Converter with EEPROM and I2C Interface

MCP4706/4716/4726
1.1 I²C Mode Timing Waveforms and Requirements
V_DD
SCL
V_IH
SDA
t_PORD
V_POR (V_BOR)
t_BORD
V_IH
V_OUT
FIGURE 1-1:
I²C Interface is operational
Power-On and Brown-Out Reset Waveforms.
SDA
ACK
Stop Start
V_OUT pulled down by internal
500 kΩ (typical) resistor
ACK
SCL
V_OUT
t_PDE
t_PDD
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.
V_DD = +2.7V to 5.5V, 5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ devices.
Typical specifications represent values for V_DD = 5.5V, T_A = +25°C.
Parameters
Sym
Min Typ Max Units
Conditions
Power Up Reset
Delay
Brown Out Reset
Delay
Power Down Disable
Time Delay
t_PORD
t_BORD
T_PDD
Power Down Enable
Time Delay
T_PDE
—
60
—
—
1
—
—
2.5
—
—
5
—
— 10.5 —
µs Monitor ACK bit response to ensure device
responds to command.
µs V_DD transitions from V_DD(MIN) → > V_POR
V_OUT driven to V_OUT disabled
µs V_DD = 5V
PD1:PD0 → ‘00’ (from ‘01’, ‘10’, or ‘11’),
from falling edge SCL at end of ACK bit.
µs V_DD = 3V
PD1:PD0 → ‘00’ (from ‘01’, ‘10’, or ‘11’),
from falling edge SCL at end of ACK bit.
µs PD1:PD0 → ‘01’, ‘10’, or ‘11’ (from ‘00’),
from falling edge SCL at end of ACK bit.
DS22272A-page 8
© 2011 Microchip Technology Inc.