The ISP1161 is a single-chip Universal Serial Bus (USB) Host Controller (HC) and Device Controller (DC) that complies with Universal Serial Bus Specification Rev 1.1. It provides two downstream ports for the USB HC and one upstream port for the USB DC. It has separate interrupt request output pins, DMA channels, and wakeup input pins, suitable for connecting USB devices and hosts.
The ISP1161 is a single‑chip full‑speed USB controller that combines a host controller (HC) and a device controller (DC) on one die. It complies with USB Specification Rev 1.1 and can operate from either a +5 V or a +3.3 V supply, offering two downstream ports for the HC and one upstream port for the DC.
The document details the controller's features, such as up to 14 programmable USB endpoints, separate FIFO buffers (4 kB for HC, 2462 B for DC), a 6 MHz crystal oscillator with PLL, and over‑current and ESD protection. Pin‑out tables, package options (LQFP64 SOT314‑2 and SOT414‑1), soldering guidelines, and application examples are also included.
| Operating temperature range | -40 to +85°C |
|---|---|
| Supply voltage | +5 V or +3.3 V |
| Package | LQFP64 (SOT314‑2, SOT414‑1) |
| HC data‑transfer rate | 15 Mbyte/s |
| DC data‑transfer rate | 11.1 Mbyte/s |
| Programmable USB endpoints | up to 14 |
| FIFO buffer RAM | HC 4 kB, DC 2462 B |
| ESD protection | 8 kV in‑circuit |
| Crystal oscillator | 6 MHz with integrated PLL |
It can operate from either a +5 V or a +3.3 V power‑supply input.
The ISP1161 provides two downstream ports for the USB host controller.
It is offered in two LQFP64 packages: SOT314‑2 and SOT414‑1.