DS2251T-32-16 Maxim Integrated Products, DS2251T-32-16 Datasheet - Page 17

• Manufacturer Part Number: DS2251T-32-16
• Description: IC MICROCNTRLR 32K 16MHZ 72-SIMM
• Manufacturer: Maxim Integrated Products
• Series: DS225xr

Specifications of DS2251T-32-16

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: SIO, UART/USART
• Peripherals: Power-Fail Reset, WDT
• Number Of I /o: 32
• Program Memory Type: SRAM
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 72-SIMM
• Processor Series: DS2251T
• Core: 8051
• Data Bus Width: 8 bit
• Program Memory Size: 32 KB
• Data Ram Size: 32 KB
• Interface Type: UART
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 2
• Operating Supply Voltage: 4.75 V to 5.25 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: 0 C
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: No

AC CHARACTERISTICS—PARALLEL PROGRAM LOAD TIMING
(V
BYTE-WIDE BUS TIMING
41
45
46
47
48
49
50
51
52
53
#
CC
= 5V ±10%, T
PARAMETER
Pulse Width of
Byte-wide Address Hold after
During MOVX
Delay from Byte-wide Address Valid
Low During MOVX
Byte-wide Data Setup to
MOVX (read)
Byte-wide Data Hold after
During MOVX (read)
Byte-wide Address Valid to R/
During MOVX (write)
Delay from R/
During MOVX (write)
Valid Data Out Hold Time from
Valid Data Out Hold Time from R/
Write Pulse Width (R/
W
PE
A
Low to Valid Data Out
3-4
= 0˚C to +70˚C.)
W
PE
Low Time)
PE
3-4 High During
3-4 High
PE
W
PE
3-4 High
Active
W
3-4 High
PE
High
3-4
17 of 22
SYMBOL
t
t
t
t
t
t
t
t
t
RWHDV
RWLPW
t
AVRWL
RWLDV
CEHDA
DACEH
CEHDV
CEHDV
CELDA
CEPW
1t
4t
4t
4t
3t
1t
6t
CLK
CLK
CLK
CLK
CLK
CLK
CLK
MIN
10
20
0
+ 40
- 35
- 30
- 35
- 35
- 15
- 20
MAX
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns