DS2251T-64-16 Maxim Integrated Products, DS2251T-64-16 Datasheet - Page 10

• Manufacturer Part Number: DS2251T-64-16
• Description: IC MICROCNTRLR 64K 16MHZ 72-SIMM
• Manufacturer: Maxim Integrated Products
• Series: DS225xr

Specifications of DS2251T-64-16

• 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: 64K 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: 64 KB
• Data Ram Size: 64 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

DC CHARACTERISTICS (continued)
(V
AC CHARACTERISTICS—EXPANDED BUS MODE TIMING SPECIFICATIONS
(V
PARAMETER
Idle Mode Current at 12MHz
Stop Mode Current
Pin Capacitance
Reset Trip Point in
Stop Mode
10
11
12
13
14
15
16
17
18
19
#
1
2
3
4
5
6
7
8
9
CC
CC
= 5V ±10%, T
= 5V ±10%, T
PARAMETER
Oscillator Frequency
ALE Pulse Width
Address Valid to ALE Low
Address Hold After ALE Low
ALE Low to Valid Instruction
In
ALE Low to
Instruction In
Input Instr. Hold after
Input Instr. Float after
Address Hold after
Address Valid to Valid
Instruction In
Data Hold after
Data Float after
ALE Low to Valid Data In
PSEN
PSEN
PSEN
RD
WR
RD
Pulse Width
Low to Valid Data In
Pulse Width
Pulse Width
Low to Valid
Low to Address Float
PSEN
RD
RD
A
A
= 0˚C to +70˚C.)
= 0˚C to +70˚C.)
Low
PSEN
With BAT =
3.0V
With BAT =
3.3V
High
High
PSEN
PSEN
Going High
Going High
Going High
At 12MHz
At 16MHz
At 12MHz
At 16MHz
At 12MHz
At 16MHz
At 12MHz
At 16MHz
At 12MHz
SYMBOL
I
I
C
STOP
IDLE
10 of 22
IN
SYMBOL
t
t
t
t
t
t
t
1/t
t
t
t
t
t
AVAAV
ALLPSL
t
RDHDV
t
RDLDV
RDHDZ
AVALL
t
t
ALLVD
ALLVI
t
t
PSLAZ
WRPW
RDPW
ALPW
PSLVI
PSPW
PSAV
AVVI
PSIV
PSIX
MIN
CLK
4.0
4.4
TYP
6t
6t
2t
3t
t
t
t
t
CLK
CLK
CLK
CLK
CLK
CLK
CLK
CLK
MIN
1.0
0
0
0
- 40
- 35
- 25
- 100
- 100
- 40
- 35
- 8
MAX
4.25
4.65
7.0
80
10
4t
3t
5t
5t
5t
8
4t
3t
5t
2t
t
16 (-16)
CLK
CLK
CLK
CLK
CLK
CLK
CLK
MAX
CLK
CLK
CLK
CLK
UNITS
mA
µA
pF
- 150
V
- 150
- 150
- 20
- 150
- 165
- 105
- 90
- 90
- 90
- 70
NOTES
UNITS
MHz
3
4
5
1
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns