CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
DC Electrical Specifications
SYMBOL
VIH
V
CC
= +5.0V ± 10%, Includes all Temperature Ranges
MIN
2.0
2.2
MAX
-
-
0.8
-
-
0.4
+1
+10
10
UNITS
V
V
V
V
V
V
A
A
A
TEST CONDITIONS
CX82C54, IX82C54
MD82C54
-
IOH = -2.5mA
IOH = -100A
IOL = +2.5mA
VIN = GND or V
CC
DIP Pins 9,11,14-16,18-23
VOUT = GND or V
CC
DIP Pins 1-8
V
CC
= 5.5V, VIN = GND or V
CC
,
Outputs Open, Counters
Programmed
V
CC
= 5.5V,
CLK0 = CLK1 = CLK2 = 8MHz,
VIN = GND or V
CC
,
Outputs Open
PARAMETER
Logical One Input Voltage
VIL
VOH
Logical Zero Input Voltage
Output HIGH Voltage
-
3.0
V
CC
-0.4
VOL
II
IO
ICCSB
Output LOW Voltage
Input Leakage Current
Output Leakage Current
Standby Power Supply Current
-
-1
-10
-
ICCOP
Operating Power Supply Current
-
10
mA
Capacitance
SYMBOL
CIN
COUT
CI/O
NOTE:
T
A
= +25
o
C; All Measurements Referenced to Device GND, Note 1
PARAMETER
Input Capacitance
Output Capacitance
I/O Capacitance
TYP
20
20
20
UNITS
pF
pF
pF
TEST CONDITIONS
FREQ = 1MHz
FREQ = 1MHz
FREQ = 1MHz
1. Not tested, but characterized at initial design and at major process/design changes.
FN2970 Rev.6.01
Jul 15, 2020
Page 3 of 23
82C54
AC Electrical Specifications
V
CC
= +5.0V ± 10%, Includes all Temperature Ranges
82C54
SYMBOL
READ CYCLE
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
TAR
TSR
TRA
TRR
TRD
TAD
TDF
TRV
Address Stable Before RD
CS Stable Before RD
Address Hold Time After RD
RD Pulse Width
Data Delay from RD
Data Delay from Address
RD to Data Floating
Command Recovery Time
30
0
0
150
-
-
5
200
-
-
-
-
120
210
85
-
25
0
0
95
-
-
5
165
-
-
-
-
85
185
65
-
25
0
0
95
-
-
5
165
-
-
-
-
85
185
65
-
ns
ns
ns
ns
ns
ns
ns
ns
1
1
1
1
1
1
2, Note 1
PARAMETER
MIN
MAX
82C54-10
MIN
MAX
82C54-12
MIN
MAX
UNITS
TEST
CONDITIONS
WRITE CYCLE
(9)
(10)
(11)
(12)
(13)
(14)
(15)
TAW
TSW
TWA
TWW
TDW
TWD
TRV
Address Stable Before WR
CS Stable Before WR
Address Hold Time After WR
WR Pulse Width
Data Setup Time Before WR
Data Hold Time After WR
Command Recovery Time
0
0
0
95
140
25
200
-
-
-
-
-
-
-
0
0
0
95
95
0
165
-
-
-
-
-
-
-
0
0
0
95
95
0
165
-
-
-
-
-
-
-
ns
ns
ns
ns
ns
ns
ns
CLOCK AND GATE
(16)
(17)
(18)
(19)
(20)
(21)
(22)
(23)
(24)
(25)
(26)
(27)
(28)
(29)
(30)
NOTE:
1. Not tested, but characterized at initial design and at major process/design changes.
TCLK
TPWH
TPWL
TR
TF
TGW
TGL
TGS
TGH
TOD
TODG
TWO
TWC
TWG
TCL
Clock Period
High Pulse Width
Low Pulse Width
Clock Rise Time
Clock Fall Time
Gate Width High
Gate Width Low
Gate Setup Time to CLK
Gate Hold Time After CLK
Output Delay from CLK
Output Delay from Gate
OUT Delay from Mode Write
CLK Delay for Loading
Gate Delay for Sampling
CLK Setup for Count Latch
125
60
60
-
-
50
50
50
50
-
-
-
0
-5
-40
DC
-
-
25
25
-
-
-
-
150
120
260
55
40
40
100
30
40
-
-
50
50
40
50
-
-
-
0
-5
-40
DC
-
-
25
25
-
-
-
-
100
100
240
55
40
40
80
30
30
-
-
50
50
40
50
-
-
-
0
-5
-40
DC
-
-
25
25
-
-
-
-
100
100
240
55
40
40
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
1
1
1
1
1
1
1
1
1
1
1
1
1
FN2970 Rev.6.01
Jul 15, 2020
Page 4 of 23
82C54
Functional Diagram
DATA/
BUS
BUFFER
CLK 0
COUNTER
0
GATE 0
OUT 0
CONTROL
WORD
REGISTER
RD
WR
A
0
A
1
CS
INTERNAL BUS
READ/
WRITE
LOGIC
COUNTER
1
CLK 1
GATE 1
OUT 1
CONTROL
LOGIC
CE
STATUS
LATCH
CR
M
STATUS
REGISTER
CR
L
INTERNAL BUS
D
7
- D
0
8
CONTROL
WORD
REGISTER
CLK 2
COUNTER
2
GATE 2
OUT 2
GATE n
CLK n
OUT n
OL
M
OL
L
COUNTER INTERNAL BLOCK DIAGRAM
Pin Description
SYMBOL
D7 - D0
CLK 0
OUT 0
GATE 0
GND
OUT 1
GATE 1
CLK 1
GATE 2
OUT 2
CLK 2
A0, A1
DIP PIN
NUMBER
1-8
9
10
11
12
13
14
15
16
17
18
19 - 20
O
I
I
I
O
I
I
TYPE
I/O
I
O
I
DEFINITION
DATA: Bi-directional three-state data bus lines, connected to system data bus.
CLOCK 0: Clock input of Counter 0.
OUT 0: Output of Counter 0.
GATE 0: Gate input of Counter 0.
GROUND: Power supply connection.
OUT 1: Output of Counter 1.
GATE 1: Gate input of Counter 1.
CLOCK 1: Clock input of Counter 1.
GATE 2: Gate input of Counter 2.
OUT 2: Output of Counter 2.
CLOCK 2: Clock input of Counter 2.
ADDRESS: Select inputs for one of the three counters or Control Word Register for read/write
operations. Normally connected to the system address bus.
A1
0
0
1
1
CS
RD
WR
V
CC
21
22
23
24
I
I
I
-
A0
0
1
0
1
SELECTS
Counter 0
Counter 1
Counter 2
Control Word Register
CHIP SELECT: A low on this input enables the 82C54 to respond to RD and WR signals. RD and WR
are ignored otherwise.
READ: This input is low during CPU read operations.
WRITE: This input is low during CPU write operations.
V
CC
: The +5V power supply pin. A 0.1F capacitor between pins VCC and GND is recommended for
Follow the steps in the TI forum to connect CC3200 to Gizwits Cloud. I would like to ask why CCS cannot open gagent.h. Is it true that Gizwits Cloud Demo can only be opened with IAR?...
[i=s]This post was last edited by dontium on 2015-1-23 11:23[/i] [p=25, null, left][color=rgb(62, 62, 62)]We know that when the various sub-modules of the circuit system exchange data, there may be so...
The PLC gives the inverter a start signal through external control. The PLC is connected to a proximity switch, and the sensed signal is a stop signal. The program is that the PLC gives the start sign...
Abstract: This paper mainly describes the key characteristics of common-mode and differential-mode signals and the methods of suppressing noise. Keywords: common mode signal, differential mode signal,...
[i=s]This post was last edited by James199 on 2021-10-17 18:56[/i]At present, most combinations in the industry are Amazon's FreeRTOS + ARM. This time we will use Huawei Hongmeng to replace FreeRTOS a...
1. Introduction
At present, with the continuous development of modern medical devices, especially electronic instruments directly connected to the human body, in addition to the increasingly high...[Details]
The radio frequency identification (RFID) market is experiencing strong growth, with sales reaching $1.7 billion in 2004 and expected to reach $5.9 billion in 2008. This surge in demand is driven b...[Details]
The role of digital-to-analog converters
Real-world analog signals, such as temperature, pressure, sound, or images, are constantly being converted into digital form that is easier to store, p...[Details]
Pulse oximeters, non-invasive instruments used to monitor a patient's blood oxygen saturation, are benefiting from moving away from expensive discrete component solutions toward more integrated design...[Details]
0 Introduction
Metal halide lamp (MHL) as a green lighting source has been widely used in the field of indoor and outdoor lighting. However, when using this green lighting source, the matc...[Details]
The overcurrent and overheating coordinated protection technology implemented by polymer positive temperature coefficient devices (PPTC) can protect motors, controllers and electronic components in...[Details]
To help improve DC/DC conversion efficiency at lighter loads and higher frequencies, Schottky diodes can be integrated into MOSFET chips to form a single package to reduce power dissipation in the ...[Details]
Overview
In recent years, the vigorous development of integrated circuits has created a huge space for the research and application of digital circuits. FPGA has low power consumption, high re...[Details]
Introduction
The MAX2116 P1db data is measured at specific combinations of RF and baseband gain over the adjustable range of these two gains. These data can be used to select gain control se...[Details]
In the issue of ensuring the safety of drivers and pedestrians, the proportion of electronic technology has increased. According to the survey, 80% to 90% of traffic accidents are caused by driver...[Details]
With the rapid development of my country's power industry, the power system has higher requirements for the collection of power generation, transmission, distribution and consumption. As a prerequis...[Details]
Abstract:
Online dynamic signature authentication is increasingly used in various fields, especially in banking and financial systems and personal identification. As the basis of online signa...[Details]
Touch sensors have been in widespread use for many years, but recent advances in mixed-signal programmable devices have made capacitive touch sensors a practical, value-added alternative to mechani...[Details]
1.
Introduction
With the rapid development of modern computer technology and Internet technology, embedded systems have begun to occupy the mainstream of the market. Due to the high ...[Details]
In the process of RF transceiver application, adjusting the processing gain (PG) of the direct sequence spread spectrum communication system (DSSS) can obtain excellent anti-noise performance, whic...[Details]
Wireless Connectivity
京公网安备 11010802033920号
EEWORLD
