Datasheet

 2010-2013 Microchip Technology Inc. DS20002266E-page 5
MCP79410/MCP79411/MCP79412
TABLE 1-2: AC CHARACTERISTICS
AC CHARACTERISTICS
Electrical Characteristics:
Industrial (I): V
CC = +1.8V to 5.5V TA = -40°C to +85°C
Param.
No.
Symbol Characteristic Min. Max. Units Conditions
1F
CLK Clock frequency —
—
100
400
kHz 1.8V  VCC < 2.5V
2.5V  V
CC  5.5V
2THIGH Clock high time 4000
600
—
—
ns 1.8V  VCC < 2.5V
2.5V  V
CC  5.5V
3T
LOW Clock low time 4700
1300
—
—
ns 1.8V  VCC < 2.5V
2.5V  V
CC  5.5V
4TR SDA and SCL rise time
(Note 1)
—
—
1000
300
ns 1.8V  VCC < 2.5V
2.5V  V
CC  5.5V
5TF SDA and SCL fall time
(Note 1)
—
—
1000
300
ns 1.8V  VCC < 2.5V
2.5V  V
CC  5.5V
6T
HD:STA Start condition hold time 4000
600
—
—
ns 1.8V  VCC < 2.5V
2.5V  V
CC  5.5V
7TSU:STA Start condition setup time 4700
600
—
—
ns 1.8V  VCC < 2.5V
2.5V  V
CC  5.5V
8THD:DAT Data input hold time 0 — ns (Note 4)
9TSU:DAT Data input setup time 250
100
—
—
ns 1.8V  VCC < 2.5V
2.5V  V
CC  5.5V
10 TSU:STO Stop condition setup time 4000
600
—
—
ns 1.8V  VCC < 2.5V
2.5V  V
CC  5.5V
11 T
AA Output valid from clock —
—
3500
900
ns 1.8V  VCC < 2.5V
2.5V  V
CC  5.5V
12 TBUF Bus free time: Time the bus
must be free before a new
transmission can start
4700
1300
—
—
ns 1.8V  VCC < 2.5V
2.5V  V
CC  5.5V
13 T
SP Input filter spike suppression
(SDA and SCL pins)
—50ns(Note 1 and Note 2)
14 T
WC Write cycle time (byte or
page)
—5ms—
15 — Endurance 1M — cycles 25°C, V
CC = 5.5V Page mode
(Note 3)
16 T
OSF OSCON Time out 1 ms (Note 5)
17 T
FVCC VCC Fall Time 300 sFrom VTRIP (max) to VTRIP (min)
(Note 1)
18 T
RVCC VCC Rise Time 0 sFrom VTRIP (min) to VTRIP (max)
(Note 1)
19 F
XTAL Crystal Frequency 32.768 kHz
Note 1: Not 100% tested.
2: The combined T
SP and VHYS specifications are due to new Schmitt Trigger inputs, which provide improved
noise spike suppression.
3: This parameter is not tested but ensured by characterization.
4: As a transmitter, the device must provide an internal minimum delay time to bridge the undefined region
(minimum 300ns) of the falling edge of the SCL to avoid unintended generation of Start or Stop conditions.
5: Parameter is not tested, ensured by characterization.