| Function | Addressable Latch |
| Number of channels (#) | 8 |
| Technology Family | CD4000 |
| Supply voltage (Min) (V) | 3 |
| Supply voltage (Max) (V) | 18 |
| Input type | Standard CMOS |
| Output type | Push-Pull |
| Data rate (Max) (Mbps) | 16 |
| IOL (Max) (mA) | 2.4 |
| IOH (Max) (mA) | -2.4 |
| Features | Standard speed (tpd > 50ns), High speed (tpd 10-50ns), Partial power down (Ioff) |
- Serial data input
- Active parallel output
- Storage register capability
- Master clear
- Can function as demultiplexer
- Standardized, symmetrical output characteristics
- 100% tested for quiescent current at 20 V
- Maximum input current of 1 μA at 18 V over full package-temperature range; 100 nA at 18 V and 25°C
- Noise margin (full package-temperature range) =
????????1 V at VDD = 5 V
????????2 V at VDD = 10 V
?????2.5 V at VDD = 15 V - 5-V, 10-V, and 15-V parametric ratings
- Meets all requirements of JEDEC Tentative Standard No. 13B, "Standard Specifications for Description of ’B’ Series CMOS Devices"
- Applications:
- Multi-line decoders
- A/D converters
NOT RECOMMENDED FOR NEW DESIGNS SEE CD4099B
CD4724B 8-bit addressable latch is a serial-input, parallel-output storage register that can perform a variety of functions.
Data are inputted to a particular bit in the latch when that bit is addressed (by means of input A0, A1, A2) and when WRITE DISABLE is at a low level. When WRITE DISABLE is high, data entry is inhibited; however, all 8 outputs can be continuously read independent of WRITE DISABLE and address inputs.
A master RESET input is available, which resets all bits to a logic "0" level when RESET and WRITE DISABLE are at a high level. When RESET is at a high level, and WRITE RESET is at a low level, the latch acts as a 1-of-8 demultiplexer; the bit that is addressed has an active output which follows the data input, while all unaddressed bits are held to a logic "0" level.
The CD4724B types are supplied in 16-lead hermetic dual-in-line ceramic packages (F3A suffix), 16-lead dual-in-line plastic packages (E suffix), 16-lead small-outline packages (NSR suffix), and 16-lead thin shrink small-outline packages (PW and PWR suffixes).