mc33880 Freescale Semiconductor, Inc, mc33880 Datasheet - Page 2

• Manufacturer Part Number: mc33880
• Description: Configurable Octal Serial Switch With Serial Peripheral Interface I/o
• Manufacturer: Freescale Semiconductor, Inc

2
33880
INTERNAL BLOCK DIAGRAM
SCLK
VDD
IN5
IN6
EN
CS
DO
__
DI
~50 µA
~50 µA
~50 µA
~50 µA
SPI and
Interface
Logic
SPI Bit 0
SPI Bit 4
Figure 2. 33880 Simplified Internal Block Diagram
Enable
IN5
INTERNAL BLOCK DIAGRAM
Internal
Bias
Open/Short Comparator
Open/Short Comparator
OV, POR, SLEEP
Control
Control
Drive
Gate
Drive
Gate
Charge
Pump
Current
Limit
TLIM
Current
Limit
TLIM
Typical of All 8 Output Drivers
–
+
+
–
+
–
+
–
~1.5 V Open/Short
~1.5 V Open/Short
+
+
_
_
Shutdown/POR
Analog Integrated Circuit Device Data
Overvoltage
Sleep State
Threshold
Threshold
Open
Load
Detect
Current
~650 µA
Freescale Semiconductor
Open
Load
Detect
Current
~650 µA
S6
VPWR
GND
S5
D1
S1
S2
S3
S4
S7
S8
D5
D6
D2
D3
D4
D7
D8
Outputs
Outputs
Outputs
Outputs
Source
Source
Drain
Drain