DS89C420-ECL Maxim Integrated Products, DS89C420-ECL Datasheet - Page 9

• Manufacturer Part Number: DS89C420-ECL
• Description: IC MCU ULTRA 33MHZ HP 44-TQFP
• Manufacturer: Maxim Integrated Products
• Series: 89Cr

Specifications of DS89C420-ECL

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 33MHz
• Connectivity: EBI/EMI, SIO, UART/USART
• Peripherals: Power-Fail Reset, WDT
• Number Of I /o: 32
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 44-TQFP, 44-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

EXTERNAL CLOCK CHARACTERISTICS
(V
SERIAL PORT MODE 0 TIMING CHARACTERISTICS
(V
Note: SM2 is the serial port 0, mode bit 2. When serial port 0 is operating in mode 0 (SM0 = SM1 = 0), SM2 determines the number of crystal
clocks in a serial-port clock cycle.
*Specifications to -40°C are guaranteed by design and not production tested.
Clock High Time
Clock Low Time
Clock Rise Time
Clock Fall Time
Clock Cycle Time
Output Data Setup to
Clock Rising
Output Data Hold to Clock
Rising
Input Data Hold after
Clock Rising
Clock Rising Edge to Input
Data Valid
CC
CC
= 4.5V to 5.5V; T
= 4.5V to 5.5V; T
PARAMETER
PARAMETER
A
A
= -40°C to +85°C.)*
= -40°C to +85°C.)*
SYMBOL
t
t
t
t
t
QVXH
XHQX
XHDX
XHDV
SYMBOL
XLXL
t
t
t
t
CHCX
CLCX
CLCH
CHCL
(Figure
SM2 = 0
SM2 = 1
SM2 = 0
SM2 = 1
SM2 = 0
SM2 = 1
SM2 = 0
SM2 = 1
SM2 = 0
SM2 = 1
CONDITIONS
4)
MIN
10
10
9 of 47
MIN
360
120
200
40
50
20
MAX
0
0
5
5
33MHz
MAX
200
40
UNITS
ns
ns
ns
ns
10t
12t
3t
2t
4t
t
CLCL
MIN
100
100
CLCL
CLCL
10
10
CLCL
CLCL
0
0
VARIABLE
CLCL
-
-
-
-
10t
3t
MAX
100
CLCL
50
CLCL
-
-
UNITS
ns
ns
ns
ns
ns